Problem with Arduiono IDE

nimishasingh · September 23, 2026, 6:18am

I recently downloaded Arduino ide on my Windows 11 pro, but whenever I try to open it, it only shows a white screen with its logo. Can someone tell me what should I do. I've tried re-installing it but that didn't work.

ptillisch · September 23, 2026, 6:23am

Hi @nimishasingh. I'm going to ask you to provide some additional information that might help us to identify the problem.

This procedure is not intended to solve the problem. The purpose is to gather more information.

Please do this:

Close all Arduino IDE windows if the IDE is already running.
Start Windows "File Explorer".
Open the Arduino IDE installation folder.
ⓘ The default installation location is at one of the following paths:
- ```
C:\Program Files\Arduino IDE
```
- ```
C:\Users\<username>\AppData\Local\Programs\Arduino IDE
```
  (where <username> is your Windows username)
  - Note that the AppData folder is hidden by default. On Windows "File Explorer", you can make it visible by opening the "View" menu, then checking the box next to "☐ Hidden items".
In the folder listing of the Arduino IDE installation folder, hold the Shift key while clicking the right hand button on the mouse.
A context menu will open
Select "Open PowerShell window here" from the menu.
Windows PowerShell will now open with the current directory set to the Arduino IDE installation folder.
Type the following command in the PowerShell window:
```
& ".\Arduino IDE"
```
Press the Enter key.
Debug output should now be printed to the PowerShell window as Arduino IDE starts.
Wait until you are sure the IDE startup has gone into the hang state
(as indicated by no additional output being printed to the terminal).
Switch back to the PowerShell window if the Arduino IDE window took the focus.
Press the Ctrl+Shift+A keyboard shortcut.
This will select all the text in the PowerShell window.
Press the Ctrl+C keyboard shortcut.
This will copy the contents of the PowerShell window to the clipboard.
Open a reply here on this forum topic by clicking the "Reply" button.
Click the <CODE/> icon on the post composer toolbar.
This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.

Code block icon on toolbar390×118 4.25 KB
Press the Ctrl+V keyboard shortcut.
This will paste the output into the code block.
Move the cursor outside of the code block markup before you add any additional text to your reply.
Click the "Reply" button to publish the post.

Please let us know if you have any questions or problems while following those instructions.

nimishasingh · September 23, 2026, 6:42am

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

PS C:\Program Files\Arduino IDE> & ".\Arduino IDE"
PS C:\Program Files\Arduino IDE>
Arduino IDE 2.3.10
Checking for frontend application configuration customizations. Module path: C:\Program Files\Arduino IDE\resources\app\lib\backend\electron-main.js, destination 'package.json': C:\Program Files\Arduino IDE\resources\app\package.json
Setting 'theia.frontend.config.appVersion' application configuration value to: "2.3.10" (type of string)
Setting 'theia.frontend.config.cliVersion' application configuration value to: "1.5.1" (type of string)
Setting 'theia.frontend.config.buildDate' application configuration value to: "2026-06-09T16:48:46.639Z" (type of string)
Frontend application configuration after modifications: {"applicationName":"Arduino IDE","defaultTheme":{"light":"arduino-theme","dark":"arduino-theme-dark"},"defaultIconTheme":"none","electron":{"windowOptions":{},"showWindowEarly":true,"splashScreenOptions":{},"uriScheme":"arduino-ide"},"defaultLocale":"","validatePreferencesSchema":false,"reloadOnReconnect":true,"uriScheme":"theia","preferences":{"window.title":"${rootName}${activeEditorShort}${appName}","files.autoSave":"afterDelay","editor.minimap.enabled":false,"editor.tabSize":2,"editor.scrollBeyondLastLine":false,"editor.quickSuggestions":{"other":false,"comments":false,"strings":false},"editor.maxTokenizationLineLength":500,"editor.bracketPairColorization.enabled":false,"breadcrumbs.enabled":false,"workbench.tree.renderIndentGuides":"none","explorer.compactFolders":false},"appVersion":"2.3.10","cliVersion":"1.5.1","buildDate":"2026-06-09T16:48:46.639Z"}
Starting backend process. PID: 13656
Showing main window early
Using browser-only version of superagent in non-browser environment
Configuration directory URI: 'file:///c%3A/Users/acer/.arduinoIDE'
Configuring to accept webviews on '^.+\.webview\..+$' hostname.
2026-09-23T06:41:57.231Z root INFO Backend u.initialize: 25.2 ms [Finished 0.584 s after backend start]
2026-09-23T06:41:57.232Z root INFO Backend Object.initialize: 22.6 ms [Finished 0.584 s after backend start]
2026-09-23T06:41:57.232Z root INFO Backend a.initialize: 1.3 ms [Finished 0.584 s after backend start]
2026-09-23T06:41:57.232Z root INFO Backend a.initialize: 1.1 ms [Finished 0.584 s after backend start]
2026-09-23T06:41:57.232Z root INFO Backend u.initialize: 1.4 ms [Finished 0.584 s after backend start]
2026-09-23T06:41:57.234Z root INFO Backend l.initialize: 23.7 ms [Finished 0.585 s after backend start]
2026-09-23T06:41:57.240Z root INFO configured all backend app contributions
2026-09-23T06:41:57.240Z root INFO Backend l.onStart: 1.3 ms [Finished 0.594 s after backend start]
2026-09-23T06:41:57.241Z root INFO Backend d.onStart: 0.1 ms [Finished 0.594 s after backend start]
2026-09-23T06:41:57.241Z root INFO Backend a.onStart: 0.3 ms [Finished 0.594 s after backend start]
2026-09-23T06:41:57.241Z config INFO >>> Initializing CLI configuration...
2026-09-23T06:41:57.241Z root INFO Backend x.onStart: 0.5 ms [Finished 0.595 s after backend start]
2026-09-23T06:41:57.241Z config INFO Loading CLI configuration from c:\Users\acer\.arduinoIDE\arduino-cli.yaml...
2026-09-23T06:41:57.242Z daemon INFO Starting daemon from C:\Program Files\Arduino IDE\resources\app\lib\backend\resources\arduino-cli.exe...
2026-09-23T06:41:57.242Z root INFO Backend w.onStart: 0.4 ms [Finished 0.596 s after backend start]
2026-09-23T06:41:57.242Z discovery-log INFO start
2026-09-23T06:41:57.242Z discovery-log INFO start new deferred
2026-09-23T06:41:57.242Z root INFO Backend v.onStart: 0.2 ms [Finished 0.596 s after backend start]
2026-09-23T06:41:57.242Z root INFO Backend a.onStart: 0.1 ms [Finished 0.596 s after backend start]
2026-09-23T06:41:57.245Z root INFO Theia app listening on http://127.0.0.1:64597.
2026-09-23T06:41:57.245Z root INFO Finished starting backend application: 3.7 ms [Finished 0.600 s after backend start]
2026-09-23T06:41:57.314Z root WARN The local plugin referenced by local-dir:/c%3A/Users/acer/.arduinoIDE/plugins does not exist.
2026-09-23T06:41:57.314Z root WARN The local plugin referenced by local-dir:/c%3A/Users/acer/.arduinoIDE/deployedPlugins does not exist.
2026-09-23T06:41:57.315Z root WARN The local plugin referenced by local-dir:C:\Users\acer\.arduinoIDE\plugins does not exist.
2026-09-23T06:41:57.324Z config INFO Loaded CLI configuration: {"board_manager":{"additional_urls":[]}}
2026-09-23T06:41:57.324Z config INFO Loading fallback CLI configuration to get 'directories.data' and 'directories.user'
2026-09-23T06:41:57.395Z root INFO Resolve plugins list: 151.6 ms [Finished 0.749 s after backend start]
2026-09-23T06:41:57.424Z daemon INFO time="2026-09-23T12:11:57+05:30" level=info msg="arduino-cli version 1.5.1"
time="2026-09-23T12:11:57+05:30" level=info msg="Using config file: c:\\Users\\acer\\.arduinoIDE\\arduino-cli.yaml"
time="2026-09-23T12:11:57+05:30" level=info msg="Executing `arduino-cli daemon`"
Daemon is now listening on 127.0.0.1:64598
{"IP":"127.0.0.1","Port":"64598"}
2026-09-23T06:41:57.424Z daemon INFO Daemon is running.
2026-09-23T06:41:57.445Z daemon INFO time="2026-09-23T12:11:57+05:30" level=info msg="Starting download" url="https://downloads.arduino.cc/libraries/library_index.tar.bz2"
2026-09-23T06:41:57.505Z config INFO Loaded fallback CLI configuration: {"directories":{"user":"C:\\Users\\acer\\Documents\\Arduino","data":"C:\\Users\\acer\\AppData\\Local\\Arduino15"}}
2026-09-23T06:41:57.505Z config INFO Merged CLI configuration with the fallback: {"directories":{"user":"C:\\Users\\acer\\Documents\\Arduino","data":"C:\\Users\\acer\\AppData\\Local\\Arduino15"},"board_manager":{"additional_urls":[]}}
2026-09-23T06:41:57.506Z config INFO Loaded the CLI configuration.
2026-09-23T06:41:57.506Z config INFO Mapped the CLI configuration: {"dataDirUri":"file:///c%3A/Users/acer/AppData/Local/Arduino15","sketchDirUri":"file:///c%3A/Users/acer/Documents/Arduino","additionalUrls":[],"network":"none","locale":"en"}
2026-09-23T06:41:57.506Z config INFO Validating the CLI configuration...
2026-09-23T06:41:57.506Z config INFO The CLI config is valid.
2026-09-23T06:41:57.506Z config INFO <<< Initialized the CLI configuration.
2026-09-23T06:41:58.518Z root INFO creating connection for 1
2026-09-23T06:41:58.826Z root INFO Deploy plugins list: 1583.0 ms [Finished 2.180 s after backend start]
2026-09-23T06:41:59.354Z root WARN A command editor.action.toggleStickyScroll is already registered.
Opening channel for service path '/services/electron-window'.
Opening channel for service path '/services/ide-updater'.
2026-09-23T06:41:59.505Z root INFO Start frontend contributions: 320.0 ms [Finished 2.217 s after frontend start]
2026-09-23T06:41:59.505Z root INFO Changed application state from 'init' to 'started_contributions'.
2026-09-23T06:41:59.514Z root INFO Changed application state from 'started_contributions' to 'attached_shell'.
2026-09-23T06:41:59.514Z root INFO >>> Restoring the layout state...
2026-09-23T06:41:59.575Z root INFO [2ac6bc02-9dde-471b-a1b3-064adfb5af54] Waiting for backend deployment: 49.1 ms [Finished 2.261 s after frontend start]
2026-09-23T06:42:00.075Z root INFO [hosted-plugin: 5740] PLUGIN_HOST(5740) starting instance
[Object: null prototype] {}
2026-09-23T06:42:00.569Z root INFO [2ac6bc02-9dde-471b-a1b3-064adfb5af54] Sync of 23 plugins: 1030.3 ms [Finished 3.292 s after frontend start]

xfpd · September 23, 2026, 1:33pm

I am not a power user of Arduiono, but most of my problems with "IDE stops working" are solved with (1) give it time and/or (2) reboot the IDE.

The IDE has A LOT-LOT of data to update, and this happens almost daily, so "Time" would be thirty minutes and "reboot" would mean Task Manager >> Halt... then restart the IDE.

The IDE seems to do well cleaning up after a messy halt on my part. It lets me get back to blinking an LED.

sonofcy · September 23, 2026, 10:51pm

I have no idea if this is the solution, but I would resolve the WARN re missing dir.

ptillisch · September 24, 2026, 3:17am

Did Arduino IDE go into the bad "only shows a white screen with its logo" during the attempt you gathered those logs from @nimishasingh?

I ask because normally we expect to see an error message in the logs when this happens. But your logs don't contain any error messages at all.

ptillisch · September 24, 2026, 3:19am

This is a "red herring". Those warnings are normal and expected. The C:/Users/acer/.arduinoIDE/plugins and C:/Users/acer/.arduinoIDE/deployedPlugins folders will only exist if the user has installed a VS Code extension to add some additional functionality to Arduino IDE. The folders will not exist if you have a vanilla installation, and their absence doesn't cause any problem (other than producing confusing log entries).

nimishasingh · September 24, 2026, 6:28am

I have already tried both these methods which you have mentioned. But these didn't seem to work. Thanks anyways :)
Does your Arduino s/w needs this much "time" every time it opens?

nimishasingh · September 24, 2026, 6:29am

Yes, it did go into the state you mentioned.

ptillisch · September 25, 2026, 2:25am

Just to be sure I understand, are you referring to the state where the Arduino IDE window looks like this?:

(with the diameter of the Arduino logo in the center of the window expanding and contracting)

nimishasingh · September 25, 2026, 5:17am

Yes.

ptillisch · September 25, 2026, 5:21am

Thanks for the clarification. I'm going to ask you to provide the logs produced by Arduino IDE when some additional debugging output is enabled.

This procedure is not intended to solve the problem. The purpose is to gather more information.

Please do this:

Start Windows "File Explorer".
Open the Arduino IDE installation folder.
ⓘ The default installation location is at one of the following paths:
- ```
C:\Program Files\Arduino IDE
```
- ```
C:\Users\<username>\AppData\Local\Programs\Arduino IDE
```
  (where <username> is your Windows username)
  - Note that the AppData folder is hidden by default. On Windows "File Explorer", you can make it visible by opening the "View" menu, then checking the box next to "☐ Hidden items".
In the folder listing of the Arduino IDE installation folder, hold the Shift key while clicking the right hand button on the mouse.
A context menu will open.
Select "Open PowerShell window here" from the menu.
PowerShell will now open with the current directory set to the Arduino IDE installation folder.
Type the following command in the PowerShell window:
```
$Env:GRPC_VERBOSITY = "DEBUG"
```
Press the Enter key.
Type the following command in the PowerShell window:
```
$Env:GRPC_TRACE = "all"
```
Press the Enter key.
Type the following command in the PowerShell window:
```
& ".\Arduino IDE"
```
Press the Enter key.
Debug output should now be printed to the PowerShell window as Arduino IDE starts (or fails to start).
Wait for Arduino IDE to .
Switch back to the PowerShell window if the Arduino IDE window took the focus.
Press the Ctrl+Shift+A keyboard shortcut.
This will select all the text in the PowerShell window.
Press the Ctrl+C keyboard shortcut.
This will copy the contents of the PowerShell window to the clipboard.
Open a reply here on this forum topic by clicking the "Reply" button.
Click the <CODE/> icon on the post composer toolbar.
This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.

Code block icon on toolbar390×118 4.25 KB
Press the Ctrl+V keyboard shortcut.
This will paste the output into the code block.
Move the cursor outside of the code block markup before you add any additional text to your reply.
Click the "Reply" button to publish the post.

Please let us know if you have any questions or problems while following those instructions.

nimishasingh · September 25, 2026, 5:27am

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

PS C:\Program Files\Arduino IDE> $Env:GRPC_VERBOSITY = "DEBUG"
PS C:\Program Files\Arduino IDE> $Env:GRPC_TRACE = "all"
PS C:\Program Files\Arduino IDE> & ".\Arduino IDE"
PS C:\Program Files\Arduino IDE>
Arduino IDE 2.3.10
Checking for frontend application configuration customizations. Module path: C:\Program Files\Arduino IDE\resources\app\lib\backend\electron-main.js, destination 'package.json': C:\Program Files\Arduino IDE\resources\app\package.json
Setting 'theia.frontend.config.appVersion' application configuration value to: "2.3.10" (type of string)
Setting 'theia.frontend.config.cliVersion' application configuration value to: "1.5.1" (type of string)
Setting 'theia.frontend.config.buildDate' application configuration value to: "2026-06-09T16:48:46.639Z" (type of string)
Frontend application configuration after modifications: {"applicationName":"Arduino IDE","defaultTheme":{"light":"arduino-theme","dark":"arduino-theme-dark"},"defaultIconTheme":"none","electron":{"windowOptions":{},"showWindowEarly":true,"splashScreenOptions":{},"uriScheme":"arduino-ide"},"defaultLocale":"","validatePreferencesSchema":false,"reloadOnReconnect":true,"uriScheme":"theia","preferences":{"window.title":"${rootName}${activeEditorShort}${appName}","files.autoSave":"afterDelay","editor.minimap.enabled":false,"editor.tabSize":2,"editor.scrollBeyondLastLine":false,"editor.quickSuggestions":{"other":false,"comments":false,"strings":false},"editor.maxTokenizationLineLength":500,"editor.bracketPairColorization.enabled":false,"breadcrumbs.enabled":false,"workbench.tree.renderIndentGuides":"none","explorer.compactFolders":false},"appVersion":"2.3.10","cliVersion":"1.5.1","buildDate":"2026-06-09T16:48:46.639Z"}
Starting backend process. PID: 11576
Showing main window early
Using browser-only version of superagent in non-browser environment
Configuration directory URI: 'file:///c%3A/Users/acer/.arduinoIDE'
Configuring to accept webviews on '^.+\.webview\..+$' hostname.
2026-09-25T05:25:44.080Z root INFO Backend u.initialize: 23.1 ms [Finished 0.502 s after backend start]
2026-09-25T05:25:44.081Z root INFO Backend Object.initialize: 21.8 ms [Finished 0.502 s after backend start]
2026-09-25T05:25:44.081Z root INFO Backend a.initialize: 1.1 ms [Finished 0.502 s after backend start]
2026-09-25T05:25:44.081Z root INFO Backend a.initialize: 0.9 ms [Finished 0.502 s after backend start]
2026-09-25T05:25:44.081Z root INFO Backend u.initialize: 1.3 ms [Finished 0.502 s after backend start]
2026-09-25T05:25:44.083Z root INFO Backend l.initialize: 23.0 ms [Finished 0.503 s after backend start]
2026-09-25T05:25:44.089Z root INFO configured all backend app contributions
2026-09-25T05:25:44.089Z root INFO Backend l.onStart: 1.0 ms [Finished 0.511 s after backend start]
2026-09-25T05:25:44.090Z root INFO Backend d.onStart: 0.1 ms [Finished 0.512 s after backend start]
2026-09-25T05:25:44.090Z root INFO Backend a.onStart: 0.3 ms [Finished 0.512 s after backend start]
2026-09-25T05:25:44.090Z config INFO >>> Initializing CLI configuration...
2026-09-25T05:25:44.090Z root INFO Backend x.onStart: 0.4 ms [Finished 0.512 s after backend start]
2026-09-25T05:25:44.090Z config INFO Loading CLI configuration from c:\Users\acer\.arduinoIDE\arduino-cli.yaml...
2026-09-25T05:25:44.091Z daemon INFO Starting daemon from C:\Program Files\Arduino IDE\resources\app\lib\backend\resources\arduino-cli.exe...
2026-09-25T05:25:44.091Z root INFO Backend w.onStart: 0.4 ms [Finished 0.513 s after backend start]
2026-09-25T05:25:44.091Z discovery-log INFO start
2026-09-25T05:25:44.091Z discovery-log INFO start new deferred
2026-09-25T05:25:44.091Z root INFO Backend v.onStart: 0.2 ms [Finished 0.513 s after backend start]
2026-09-25T05:25:44.091Z root INFO Backend a.onStart: 0.1 ms [Finished 0.513 s after backend start]
2026-09-25T05:25:44.094Z root INFO Theia app listening on http://127.0.0.1:54012.
2026-09-25T05:25:44.094Z root INFO Finished starting backend application: 3.5 ms [Finished 0.517 s after backend start]
2026-09-25T05:25:44.103Z root WARN The local plugin referenced by local-dir:/c%3A/Users/acer/.arduinoIDE/plugins does not exist.
2026-09-25T05:25:44.103Z root WARN The local plugin referenced by local-dir:/c%3A/Users/acer/.arduinoIDE/deployedPlugins does not exist.
2026-09-25T05:25:44.103Z root WARN The local plugin referenced by local-dir:C:\Users\acer\.arduinoIDE\plugins does not exist.
2026-09-25T05:25:44.114Z config INFO Loaded CLI configuration: {"board_manager":{"additional_urls":[]}}
2026-09-25T05:25:44.115Z config INFO Loading fallback CLI configuration to get 'directories.data' and 'directories.user'
2026-09-25T05:25:44.162Z daemon INFO time="2026-09-25T10:55:44+05:30" level=info msg="arduino-cli version 1.5.1"
2026-09-25T05:25:44.162Z daemon INFO time="2026-09-25T10:55:44+05:30" level=info msg="Using config file: c:\\Users\\acer\\.arduinoIDE\\arduino-cli.yaml"
time="2026-09-25T10:55:44+05:30" level=info msg="Executing `arduino-cli daemon`"
2026-09-25T05:25:44.175Z daemon INFO Daemon is now listening on 127.0.0.1:54013
{"IP":"127.0.0.1","Port":"54013"}
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.164Z | v1.13.0 11576 | resolving_load_balancer | dns:localhost:54013 IDLE -> IDLE
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.165Z | v1.13.0 11576 | connectivity_state | (1) dns:localhost:54013 IDLE -> IDLE
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.170Z | v1.13.0 11576 | dns_resolver | Resolver constructed for target dns:localhost:54013
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.172Z | v1.13.0 11576 | backoff | {0} constructed initialDelay=1000 multiplier=1.6 jitter=0.2 maxDelay=120000
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.172Z | v1.13.0 11576 | backoff | {1} constructed initialDelay=1000 multiplier=1.6 jitter=0.2 maxDelay=120000
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.172Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 Channel constructed with options {
  "grpc.max_send_message_length": 536870912,
  "grpc.max_receive_message_length": 536870912,
  "grpc.primary_user_agent": "arduino-ide/2.3.10"
}
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.172Z | v1.13.0 11576 | channel_stacktrace | (1) Channel constructed
    at new t.InternalChannel (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:3105787)
    at new t.ChannelImplementation (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:6590616)
    at new t.Client (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:6721256)
    at new s (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:3119570)
    at t.createArduinoCoreServiceClient (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:2759491)
    at y.createClient (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:6328879)
    at y.create (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:6327837)
    at C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:6326733
    at C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:1050883
    at s.invoke (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:1050973)
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.172Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createResolvingCall [0] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/Create", deadline=Infinity
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.173Z | v1.13.0 11576 | resolving_call | [0] Created
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.173Z | v1.13.0 11576 | resolving_call | [0] Deadline: Infinity
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.173Z | v1.13.0 11576 | resolving_call | [0] start called
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.173Z | v1.13.0 11576 | backoff | {0} runOnce()
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.173Z | v1.13.0 11576 | backoff | {0} runTimer(delay=1000)
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.173Z | v1.13.0 11576 | dns_resolver | Looking up DNS hostname localhost
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.174Z | v1.13.0 11576 | resolving_load_balancer | dns:localhost:54013 IDLE -> CONNECTING
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.174Z | v1.13.0 11576 | connectivity_state | (1) dns:localhost:54013 IDLE -> CONNECTING
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.174Z | v1.13.0 11576 | backoff | {1} runOnce()
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.174Z | v1.13.0 11576 | backoff | {1} runTimer(delay=1000)
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.174Z | v1.13.0 11576 | resolving_call | [0] startRead called
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.174Z | v1.13.0 11576 | resolving_call | [0] write() called with message of length 0
2026-09-25T05:25:44.175Z root ERROR D 2026-09-25T05:25:44.174Z | v1.13.0 11576 | resolving_call | [0] halfClose called
2026-09-25T05:25:44.175Z daemon INFO Daemon is running.
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.183Z | v1.13.0 11576 | backoff | {0} reset() running=true
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.183Z | v1.13.0 11576 | backoff | {0} runTimer(delay=1990)
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.183Z | v1.13.0 11576 | backoff | {0} stop()
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.183Z | v1.13.0 11576 | dns_resolver | Resolved addresses for target dns:localhost:54013: [127.0.0.1:54013,::1:54013]
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.183Z | v1.13.0 11576 | backoff | {1} stop()
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.183Z | v1.13.0 11576 | backoff | {1} reset() running=false
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | pick_first | updateAddressList([127.0.0.1:54013,[::1]:54013])
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | pick_first | connectToAddressList([127.0.0.1:54013,[::1]:54013])
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | backoff | {2} constructed initialDelay=1000 multiplier=1.6 jitter=0.2 maxDelay=120000
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | subchannel | (1) 127.0.0.1:54013 Subchannel constructed with options {
  "grpc.max_send_message_length": 536870912,
  "grpc.max_receive_message_length": 536870912,
  "grpc.primary_user_agent": "arduino-ide/2.3.10"
}
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | subchannel_refcount | (1) 127.0.0.1:54013 refcount 0 -> 1
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | backoff | {3} constructed initialDelay=1000 multiplier=1.6 jitter=0.2 maxDelay=120000
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | subchannel | (2) [::1]:54013 Subchannel constructed with options {
  "grpc.max_send_message_length": 536870912,
  "grpc.max_receive_message_length": 536870912,
  "grpc.primary_user_agent": "arduino-ide/2.3.10"
}
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.184Z | v1.13.0 11576 | subchannel_refcount | (2) [::1]:54013 refcount 0 -> 1
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.185Z | v1.13.0 11576 | subchannel_refcount | (1) 127.0.0.1:54013 refcount 1 -> 2
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.185Z | v1.13.0 11576 | subchannel_refcount | (2) [::1]:54013 refcount 1 -> 2
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.185Z | v1.13.0 11576 | pick_first | Start connecting to subchannel with address 127.0.0.1:54013
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.185Z | v1.13.0 11576 | pick_first | IDLE -> CONNECTING
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.185Z | v1.13.0 11576 | resolving_load_balancer | dns:localhost:54013 CONNECTING -> CONNECTING
2026-09-25T05:25:44.185Z root ERROR D 2026-09-25T05:25:44.185Z | v1.13.0 11576 | connectivity_state | (1) dns:localhost:54013 CONNECTING -> CONNECTING
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.186Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 callRefTimer.unref | configSelectionQueue.length=0 pickQueue.length=0
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.186Z | v1.13.0 11576 | subchannel | (1) 127.0.0.1:54013 IDLE -> CONNECTING
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.186Z | v1.13.0 11576 | backoff | {2} runOnce()
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.186Z | v1.13.0 11576 | backoff | {2} runTimer(delay=1000)
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.187Z | v1.13.0 11576 | transport | dns:localhost:54013 127.0.0.1:54013 Waiting for secureConnector to be ready
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.187Z | v1.13.0 11576 | transport | dns:localhost:54013 127.0.0.1:54013 secureConnector is ready
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.187Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createRetryingCall [1] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/Create"
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.187Z | v1.13.0 11576 | resolving_call | [0] Created child [1]
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | retrying_call | [1] start called
2026-09-25T05:25:44.189Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createLoadBalancingCall [2] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/Create"
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | retrying_call | [1] Created child call [2] for attempt 1
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | load_balancing_call | [2] start called
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | load_balancing_call | [2] Pick called
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | load_balancing_call | [2] Pick result: QUEUE subchannel: null status: undefined undefined
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 callRefTimer.ref | configSelectionQueue.length=0 pickQueue.length=1
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | retrying_call | [1] startRead called
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.188Z | v1.13.0 11576 | load_balancing_call | [2] startRead called
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.189Z | v1.13.0 11576 | retrying_call | [1] write() called with message of length 5
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.189Z | v1.13.0 11576 | load_balancing_call | [2] write() called with message of length 5
2026-09-25T05:25:44.190Z root ERROR D 2026-09-25T05:25:44.189Z | v1.13.0 11576 | retrying_call | [1] halfClose called
2026-09-25T05:25:44.193Z root ERROR D 2026-09-25T05:25:44.191Z | v1.13.0 11576 | transport | dns:localhost:54013 127.0.0.1:54013 Established TCP connection
2026-09-25T05:25:44.193Z root ERROR D 2026-09-25T05:25:44.191Z | v1.13.0 11576 | transport | dns:localhost:54013 127.0.0.1:54013 Established secure connection
2026-09-25T05:25:44.325Z root INFO Resolve plugins list: 233.7 ms [Finished 0.748 s after backend start]
2026-09-25T05:25:44.437Z root ERROR D 2026-09-25T05:25:44.437Z | v1.13.0 11576 | pick_first | Start connecting to subchannel with address [::1]:54013
2026-09-25T05:25:44.437Z root ERROR D 2026-09-25T05:25:44.437Z | v1.13.0 11576 | subchannel | (2) [::1]:54013 IDLE -> CONNECTING
2026-09-25T05:25:44.437Z root ERROR D 2026-09-25T05:25:44.437Z | v1.13.0 11576 | backoff | {3} runOnce()
2026-09-25T05:25:44.437Z root ERROR D 2026-09-25T05:25:44.437Z | v1.13.0 11576 | backoff | {3} runTimer(delay=1000)
2026-09-25T05:25:44.437Z root ERROR D 2026-09-25T05:25:44.437Z | v1.13.0 11576 | transport | dns:localhost:54013 [::1]:54013 Waiting for secureConnector to be ready
2026-09-25T05:25:44.437Z root ERROR D 2026-09-25T05:25:44.437Z | v1.13.0 11576 | transport | dns:localhost:54013 [::1]:54013 secureConnector is ready
2026-09-25T05:25:44.438Z root ERROR D 2026-09-25T05:25:44.438Z | v1.13.0 11576 | subchannel | (2) [::1]:54013 CONNECTING -> TRANSIENT_FAILURE with error "Error: connect ECONNREFUSED ::1:54013"
2026-09-25T05:25:44.480Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | subchannel | (1) 127.0.0.1:54013 CONNECTING -> READY
2026-09-25T05:25:44.480Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | backoff | {2} stop()
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | backoff | {2} reset() running=false
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | pick_first | Pick subchannel with address 127.0.0.1:54013
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | subchannel_refcount | (1) 127.0.0.1:54013 refcount 2 -> 3
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | subchannel_refcount | (1) 127.0.0.1:54013 refcount 3 -> 2
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | subchannel_refcount | (2) [::1]:54013 refcount 2 -> 1
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | pick_first | CONNECTING -> READY
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | resolving_load_balancer | dns:localhost:54013 CONNECTING -> READY
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 callRefTimer.unref | configSelectionQueue.length=0 pickQueue.length=0
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | load_balancing_call | [2] Pick called
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | load_balancing_call | [2] Pick result: COMPLETE subchannel: (1) 127.0.0.1:54013 status: undefined undefined
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.477Z | v1.13.0 11576 | connectivity_state | (1) dns:localhost:54013 CONNECTING -> READY
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.479Z | v1.13.0 11576 | transport_flowctrl | (1) 127.0.0.1:54013 local window size: 65535 remote window size: 65535
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.479Z | v1.13.0 11576 | transport_internals | (1) 127.0.0.1:54013 session.closed=false session.destroyed=false session.socket.destroyed=false
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.480Z | v1.13.0 11576 | load_balancing_call | [2] Created child call [3]
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.480Z | v1.13.0 11576 | subchannel_call | [3] write() called with message of length 5
2026-09-25T05:25:44.481Z root ERROR D 2026-09-25T05:25:44.480Z | v1.13.0 11576 | subchannel_call | [3] sending data chunk of length 5
2026-09-25T05:25:44.482Z root ERROR D 2026-09-25T05:25:44.482Z | v1.13.0 11576 | load_balancing_call | [2] halfClose called
2026-09-25T05:25:44.482Z root ERROR D 2026-09-25T05:25:44.482Z | v1.13.0 11576 | subchannel_call | [3] end() called
2026-09-25T05:25:44.482Z root ERROR D 2026-09-25T05:25:44.482Z | v1.13.0 11576 | subchannel_call | [3] calling end() on HTTP/2 stream
2026-09-25T05:25:44.482Z root ERROR D 2026-09-25T05:25:44.482Z | v1.13.0 11576 | transport | (1) 127.0.0.1:54013 local settings acknowledged by remote: {"headerTableSize":4096,"enablePush":true,"initialWindowSize":65535,"maxFrameSize":16384,"maxConcurrentStreams":4294967295,"maxHeaderListSize":4294967295,"maxHeaderSize":4294967295,"enableConnectProtocol":false}
2026-09-25T05:25:44.581Z root ERROR D 2026-09-25T05:25:44.580Z | v1.13.0 11576 | subchannel_call | [3] Received server headers:
                :status: 200
                content-type: application/grpc

2026-09-25T05:25:44.581Z root ERROR D 2026-09-25T05:25:44.580Z | v1.13.0 11576 | load_balancing_call | [2] Received metadata
2026-09-25T05:25:44.581Z root ERROR D 2026-09-25T05:25:44.580Z | v1.13.0 11576 | retrying_call | [1] Received metadata from child [2]
2026-09-25T05:25:44.581Z root ERROR D 2026-09-25T05:25:44.580Z | v1.13.0 11576 | retrying_call | [1] Committing call [2] at index 0
2026-09-25T05:25:44.581Z root ERROR D 2026-09-25T05:25:44.580Z | v1.13.0 11576 | resolving_call | [0] Received metadata
2026-09-25T05:25:44.582Z root ERROR D 2026-09-25T05:25:44.581Z | v1.13.0 11576 | subchannel_call | [3] receive HTTP/2 data frame of length 9
2026-09-25T05:25:44.582Z root ERROR D 2026-09-25T05:25:44.581Z | v1.13.0 11576 | subchannel_call | [3] parsed message of length 9
2026-09-25T05:25:44.582Z root ERROR D 2026-09-25T05:25:44.581Z | v1.13.0 11576 | subchannel_call | [3] pushing to reader message of length 9
2026-09-25T05:25:44.582Z root ERROR D 2026-09-25T05:25:44.581Z | v1.13.0 11576 | load_balancing_call | [2] Received message
2026-09-25T05:25:44.582Z root ERROR D 2026-09-25T05:25:44.581Z | v1.13.0 11576 | retrying_call | [1] Received message from child [2]
2026-09-25T05:25:44.582Z root ERROR D 2026-09-25T05:25:44.581Z | v1.13.0 11576 | resolving_call | [0] Received message
2026-09-25T05:25:44.582Z root ERROR D 2026-09-25T05:25:44.581Z | v1.13.0 11576 | resolving_call | [0] Finished filtering received message
2026-09-25T05:25:44.583Z root ERROR D 2026-09-25T05:25:44.583Z | v1.13.0 11576 | subchannel_call | [3] Received server trailers:
                grpc-status: 0
                grpc-message:

2026-09-25T05:25:44.583Z root ERROR D 2026-09-25T05:25:44.583Z | v1.13.0 11576 | subchannel_call | [3] received status code 0 from server
2026-09-25T05:25:44.583Z root ERROR D 2026-09-25T05:25:44.583Z | v1.13.0 11576 | subchannel_call | [3] received status details string "" from server
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.583Z | v1.13.0 11576 | subchannel_call | [3] ended with status: code=0 details=""
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.584Z | v1.13.0 11576 | load_balancing_call | [2] Received status
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.584Z | v1.13.0 11576 | load_balancing_call | [2] ended with status: code=0 details="" start time=2026-09-25T05:25:44.188Z
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.584Z | v1.13.0 11576 | retrying_call | [1] Received status from child [2]
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.584Z | v1.13.0 11576 | retrying_call | [1] state=COMMITTED handling status with progress PROCESSED from child [2] in state ACTIVE
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.584Z | v1.13.0 11576 | retrying_call | [1] ended with status: code=0 details="" start time=2026-09-25T05:25:44.187Z
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.584Z | v1.13.0 11576 | resolving_call | [0] Received status
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.584Z | v1.13.0 11576 | resolving_call | [0] ended with status: code=0 details=""
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.585Z | v1.13.0 11576 | subchannel_call | [3] HTTP/2 stream closed with code 0
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.585Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createResolvingCall [4] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/Init", deadline=Infinity
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.585Z | v1.13.0 11576 | resolving_call | [4] Created
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.585Z | v1.13.0 11576 | resolving_call | [4] Deadline: Infinity
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | resolving_call | [4] start called
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | resolving_call | [4] write() called with message of length 4
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | resolving_call | [4] halfClose called
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createRetryingCall [5] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/Init"
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | resolving_call | [4] Created child [5]
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | retrying_call | [5] start called
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createLoadBalancingCall [6] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/Init"
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | retrying_call | [5] Created child call [6] for attempt 1
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | load_balancing_call | [6] start called
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | load_balancing_call | [6] Pick called
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | load_balancing_call | [6] Pick result: COMPLETE subchannel: (1) 127.0.0.1:54013 status: undefined undefined
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | transport_flowctrl | (1) 127.0.0.1:54013 local window size: 65526 remote window size: 65535
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | transport_internals | (1) 127.0.0.1:54013 session.closed=false session.destroyed=false session.socket.destroyed=false
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.586Z | v1.13.0 11576 | load_balancing_call | [6] Created child call [7]
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.587Z | v1.13.0 11576 | retrying_call | [5] write() called with message of length 9
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.587Z | v1.13.0 11576 | load_balancing_call | [6] write() called with message of length 9
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.587Z | v1.13.0 11576 | subchannel_call | [7] write() called with message of length 9
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.587Z | v1.13.0 11576 | subchannel_call | [7] sending data chunk of length 9
2026-09-25T05:25:44.587Z root ERROR D 2026-09-25T05:25:44.587Z | v1.13.0 11576 | retrying_call | [5] halfClose called
2026-09-25T05:25:44.588Z root ERROR D 2026-09-25T05:25:44.588Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:25:44.588Z root ERROR D 2026-09-25T05:25:44.588Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:25:44.588Z root ERROR D 2026-09-25T05:25:44.588Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:25:44.588Z root ERROR D 2026-09-25T05:25:44.588Z | v1.13.0 11576 | load_balancing_call | [6] halfClose called
2026-09-25T05:25:44.588Z root ERROR D 2026-09-25T05:25:44.588Z | v1.13.0 11576 | subchannel_call | [7] end() called
2026-09-25T05:25:44.588Z root ERROR D 2026-09-25T05:25:44.588Z | v1.13.0 11576 | subchannel_call | [7] calling end() on HTTP/2 stream
2026-09-25T05:25:44.590Z daemon INFO time="2026-09-25T10:55:44+05:30" level=info msg="Starting download" url="https://downloads.arduino.cc/libraries/library_index.tar.bz2"
2026-09-25T05:25:44.591Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | subchannel_call | [7] Received server headers:
                :status: 200
                content-type: application/grpc

2026-09-25T05:25:44.591Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | load_balancing_call | [6] Received metadata
2026-09-25T05:25:44.591Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | retrying_call | [5] Received metadata from child [6]
2026-09-25T05:25:44.591Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | retrying_call | [5] Committing call [6] at index 0
2026-09-25T05:25:44.591Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | resolving_call | [4] Received metadata
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | subchannel_call | [7] receive HTTP/2 data frame of length 115
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | subchannel_call | [7] parsed message of length 115
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | subchannel_call | [7] pushing to reader message of length 115
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | load_balancing_call | [6] Received message
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | retrying_call | [5] Received message from child [6]
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | resolving_call | [4] Received message
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.591Z | v1.13.0 11576 | resolving_call | [4] Finished filtering received message
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.592Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.592Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:25:44.592Z root ERROR D 2026-09-25T05:25:44.592Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:25:44.635Z config INFO Loaded fallback CLI configuration: {"directories":{"user":"C:\\Users\\acer\\Documents\\Arduino","data":"C:\\Users\\acer\\AppData\\Local\\Arduino15"}}
2026-09-25T05:25:44.635Z config INFO Merged CLI configuration with the fallback: {"directories":{"user":"C:\\Users\\acer\\Documents\\Arduino","data":"C:\\Users\\acer\\AppData\\Local\\Arduino15"},"board_manager":{"additional_urls":[]}}
2026-09-25T05:25:44.635Z config INFO Loaded the CLI configuration.
2026-09-25T05:25:44.878Z config INFO Mapped the CLI configuration: {"dataDirUri":"file:///c%3A/Users/acer/AppData/Local/Arduino15","sketchDirUri":"file:///c%3A/Users/acer/Documents/Arduino","additionalUrls":[],"network":"none","locale":"en"}
2026-09-25T05:25:44.878Z config INFO Validating the CLI configuration...
2026-09-25T05:25:44.878Z config INFO The CLI config is valid.
2026-09-25T05:25:44.878Z config INFO <<< Initialized the CLI configuration.
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | backoff | {3} timer fired
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | subchannel | (2) [::1]:54013 TRANSIENT_FAILURE -> CONNECTING
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | backoff | {3} runOnce()
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | backoff | {3} runTimer(delay=1885.7843366878233)
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | transport | dns:localhost:54013 [::1]:54013 Waiting for secureConnector to be ready
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | transport | dns:localhost:54013 [::1]:54013 secureConnector is ready
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | subchannel | (2) [::1]:54013 CONNECTING -> TRANSIENT_FAILURE with error "Error: connect ECONNREFUSED ::1:54013"
2026-09-25T05:25:45.437Z root ERROR D 2026-09-25T05:25:45.437Z | v1.13.0 11576 | subchannel | (2) [::1]:54013 TRANSIENT_FAILURE -> IDLE
2026-09-25T05:25:45.520Z root INFO creating connection for 1
2026-09-25T05:25:46.279Z root WARN Frontend a.configure took longer than the expected maximum 100 milliseconds: 108.3 ms [Finished 2.172 s after frontend start]
2026-09-25T05:25:46.301Z root WARN A command editor.action.toggleStickyScroll is already registered.
Opening channel for service path '/services/electron-window'.
Opening channel for service path '/services/ide-updater'.
2026-09-25T05:25:46.416Z root INFO Start frontend contributions: 293.6 ms [Finished 2.301 s after frontend start]
2026-09-25T05:25:46.416Z root INFO Changed application state from 'init' to 'started_contributions'.
2026-09-25T05:25:46.423Z root INFO Changed application state from 'started_contributions' to 'attached_shell'.
2026-09-25T05:25:46.424Z root INFO >>> Restoring the layout state...
2026-09-25T05:25:46.616Z root INFO Deploy plugins list: 2524.6 ms [Finished 3.039 s after backend start]
2026-09-25T05:25:46.620Z root INFO [4969e68e-c641-4b13-a0ab-597f6184e1ea] Waiting for backend deployment: 221.4 ms [Finished 2.517 s after frontend start]
2026-09-25T05:25:47.141Z root INFO [hosted-plugin: 17872] PLUGIN_HOST(17872) starting instance
[Object: null prototype] {}
2026-09-25T05:25:47.323Z root ERROR D 2026-09-25T05:25:47.323Z | v1.13.0 11576 | backoff | {3} timer fired
2026-09-25T05:25:47.642Z root INFO [4969e68e-c641-4b13-a0ab-597f6184e1ea] Sync of 23 plugins: 1024.3 ms [Finished 3.542 s after frontend start]
2026-09-25T05:25:54.187Z root ERROR D 2026-09-25T05:25:54.187Z | v1.13.0 11576 | subchannel_refcount | (2) [::1]:54013 refcount 1 -> 0
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.592Z | v1.13.0 11576 | subchannel_call | [7] receive HTTP/2 data frame of length 202
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.592Z | v1.13.0 11576 | subchannel_call | [7] parsed message of length 202
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.592Z | v1.13.0 11576 | subchannel_call | [7] pushing to reader message of length 202
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.592Z | v1.13.0 11576 | load_balancing_call | [6] Received message
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.593Z | v1.13.0 11576 | retrying_call | [5] Received message from child [6]
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.593Z | v1.13.0 11576 | resolving_call | [4] Received message
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.593Z | v1.13.0 11576 | resolving_call | [4] Finished filtering received message
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.594Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.594Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:26:44.594Z root ERROR D 2026-09-25T05:26:44.594Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:26:44.598Z root ERROR D 2026-09-25T05:26:44.595Z | v1.13.0 11576 | subchannel_call | [7] receive HTTP/2 data frame of length 642
2026-09-25T05:26:44.598Z root ERROR D 2026-09-25T05:26:44.595Z | v1.13.0 11576 | subchannel_call | [7] parsed message of length 642
2026-09-25T05:26:44.598Z root ERROR D 2026-09-25T05:26:44.595Z | v1.13.0 11576 | subchannel_call | [7] pushing to reader message of length 642
2026-09-25T05:26:44.598Z root ERROR D 2026-09-25T05:26:44.595Z | v1.13.0 11576 | load_balancing_call | [6] Received message
2026-09-25T05:26:44.598Z root ERROR D 2026-09-25T05:26:44.595Z | v1.13.0 11576 | retrying_call | [5] Received message from child [6]
2026-09-25T05:26:44.598Z root ERROR D 2026-09-25T05:26:44.595Z | v1.13.0 11576 | resolving_call | [4] Received message
2026-09-25T05:26:44.598Z root ERROR D 2026-09-25T05:26:44.595Z | v1.13.0 11576 | resolving_call | [4] Finished filtering received message
2026-09-25T05:26:44.598Z root ERROR Detected an error response during the gRPC core client initialization: code: 3, message: Error downloading index 'https://downloads.arduino.cc/libraries/library_index.tar.bz2': Download failed: performing HEAD request: Head "https://downloads.arduino.cc/libraries/library_index.tar.bz2": context deadline exceeded (Client.Timeout exceeded while awaiting headers)
2026-09-25T05:26:44.599Z root ERROR D 2026-09-25T05:26:44.598Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:26:44.599Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:26:44.599Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | subchannel_call | [7] receive HTTP/2 data frame of length 510
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | subchannel_call | [7] parsed message of length 510
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | subchannel_call | [7] pushing to reader message of length 510
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | load_balancing_call | [6] Received message
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | retrying_call | [5] Received message from child [6]
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | resolving_call | [4] Received message
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.599Z | v1.13.0 11576 | resolving_call | [4] Finished filtering received message
2026-09-25T05:26:44.600Z root ERROR Detected an error response during the gRPC core client initialization: code: 9, message: Loading index file: loading json index file C:\Users\acer\AppData\Local\Arduino15\package_index.json: open C:\Users\acer\AppData\Local\Arduino15\package_index.json: The system cannot find the file specified.
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.600Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.600Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:26:44.600Z root ERROR D 2026-09-25T05:26:44.600Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:26:44.601Z root ERROR D 2026-09-25T05:26:44.601Z | v1.13.0 11576 | subchannel_call | [7] receive HTTP/2 data frame of length 160
2026-09-25T05:26:44.601Z root ERROR D 2026-09-25T05:26:44.601Z | v1.13.0 11576 | subchannel_call | [7] parsed message of length 160
2026-09-25T05:26:44.601Z root ERROR D 2026-09-25T05:26:44.601Z | v1.13.0 11576 | subchannel_call | [7] pushing to reader message of length 160
2026-09-25T05:26:44.601Z root ERROR D 2026-09-25T05:26:44.601Z | v1.13.0 11576 | load_balancing_call | [6] Received message
2026-09-25T05:26:44.602Z root ERROR D 2026-09-25T05:26:44.601Z | v1.13.0 11576 | retrying_call | [5] Received message from child [6]
2026-09-25T05:26:44.602Z root ERROR D 2026-09-25T05:26:44.601Z | v1.13.0 11576 | resolving_call | [4] Received message
2026-09-25T05:26:44.602Z root ERROR D 2026-09-25T05:26:44.601Z | v1.13.0 11576 | resolving_call | [4] Finished filtering received message
2026-09-25T05:26:44.602Z root ERROR Detected an error response during the gRPC core client initialization: code: 9, message: Error loading hardware platform: discovery builtin:serial-discovery not found
2026-09-25T05:26:44.602Z root ERROR D 2026-09-25T05:26:44.602Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:26:44.602Z root ERROR D 2026-09-25T05:26:44.602Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:26:44.602Z root ERROR D 2026-09-25T05:26:44.602Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:26:44.603Z root ERROR D 2026-09-25T05:26:44.602Z | v1.13.0 11576 | subchannel_call | [7] receive HTTP/2 data frame of length 158
2026-09-25T05:26:44.603Z root ERROR D 2026-09-25T05:26:44.602Z | v1.13.0 11576 | subchannel_call | [7] parsed message of length 158
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.603Z | v1.13.0 11576 | subchannel_call | [7] pushing to reader message of length 158
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.603Z | v1.13.0 11576 | load_balancing_call | [6] Received message
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.603Z | v1.13.0 11576 | retrying_call | [5] Received message from child [6]
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.603Z | v1.13.0 11576 | resolving_call | [4] Received message
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.603Z | v1.13.0 11576 | resolving_call | [4] Finished filtering received message
2026-09-25T05:26:44.604Z root ERROR Detected an error response during the gRPC core client initialization: code: 9, message: Error loading hardware platform: discovery builtin:mdns-discovery not found
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.604Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.604Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:26:44.604Z root ERROR D 2026-09-25T05:26:44.604Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:26:44.605Z root ERROR D 2026-09-25T05:26:44.605Z | v1.13.0 11576 | subchannel_call | [7] receive HTTP/2 data frame of length 166
2026-09-25T05:26:44.605Z root ERROR D 2026-09-25T05:26:44.605Z | v1.13.0 11576 | subchannel_call | [7] parsed message of length 166
2026-09-25T05:26:44.605Z root ERROR D 2026-09-25T05:26:44.605Z | v1.13.0 11576 | subchannel_call | [7] pushing to reader message of length 166
2026-09-25T05:26:44.605Z root ERROR D 2026-09-25T05:26:44.605Z | v1.13.0 11576 | load_balancing_call | [6] Received message
2026-09-25T05:26:44.606Z root ERROR D 2026-09-25T05:26:44.605Z | v1.13.0 11576 | retrying_call | [5] Received message from child [6]
2026-09-25T05:26:44.606Z root ERROR D 2026-09-25T05:26:44.605Z | v1.13.0 11576 | resolving_call | [4] Received message
2026-09-25T05:26:44.606Z root ERROR D 2026-09-25T05:26:44.605Z | v1.13.0 11576 | resolving_call | [4] Finished filtering received message
2026-09-25T05:26:44.606Z root ERROR Detected an error response during the gRPC core client initialization: code: 9, message: Loading index file: reading library_index.json: open C:\Users\acer\AppData\Local\Arduino15\library_index.json: The system cannot find the file specified.
2026-09-25T05:26:44.606Z root ERROR D 2026-09-25T05:26:44.606Z | v1.13.0 11576 | resolving_call | [4] startRead called
2026-09-25T05:26:44.606Z root ERROR D 2026-09-25T05:26:44.606Z | v1.13.0 11576 | retrying_call | [5] startRead called
2026-09-25T05:26:44.606Z root ERROR D 2026-09-25T05:26:44.606Z | v1.13.0 11576 | load_balancing_call | [6] startRead called
2026-09-25T05:26:44.619Z root ERROR D 2026-09-25T05:26:44.606Z | v1.13.0 11576 | subchannel_call | [7] Received server trailers:
                grpc-status: 0
                grpc-message:

2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.606Z | v1.13.0 11576 | subchannel_call | [7] received status code 0 from server
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.606Z | v1.13.0 11576 | subchannel_call | [7] received status details string "" from server
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | subchannel_call | [7] ended with status: code=0 details=""
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | load_balancing_call | [6] Received status
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | load_balancing_call | [6] ended with status: code=0 details="" start time=2026-09-25T05:25:44.586Z
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | retrying_call | [5] Received status from child [6]
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | retrying_call | [5] state=COMMITTED handling status with progress PROCESSED from child [6] in state ACTIVE
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | retrying_call | [5] ended with status: code=0 details="" start time=2026-09-25T05:25:44.586Z
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | resolving_call | [4] Received status
2026-09-25T05:26:44.620Z root ERROR D 2026-09-25T05:26:44.607Z | v1.13.0 11576 | resolving_call | [4] ended with status: code=0 details=""
2026-09-25T05:26:44.622Z root ERROR The primary packages indexes are missing. Running indexes update before initializing the core gRPC client The index of the cores and libraries must be updated before initializing the core gRPC client.
The following problems were detected during the gRPC client initialization:
[platform-index] - code: 9, message: Loading index file: loading json index file C:\Users\acer\AppData\Local\Arduino15\package_index.json: open C:\Users\acer\AppData\Local\Arduino15\package_index.json: The system cannot find the file specified.
[platform-index] - code: 9, message: Error loading hardware platform: discovery builtin:serial-discovery not found
[platform-index] - code: 9, message: Error loading hardware platform: discovery builtin:mdns-discovery not found
[library-index] - code: 9, message: Loading index file: reading library_index.json: open C:\Users\acer\AppData\Local\Arduino15\library_index.json: The system cannot find the file specified.

2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.616Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createResolvingCall [8] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/UpdateIndex", deadline=Infinity
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.616Z | v1.13.0 11576 | resolving_call | [8] Created
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.616Z | v1.13.0 11576 | resolving_call | [8] Deadline: Infinity
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.617Z | v1.13.0 11576 | resolving_call | [8] start called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.617Z | v1.13.0 11576 | resolving_call | [8] write() called with message of length 4
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.617Z | v1.13.0 11576 | resolving_call | [8] halfClose called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.618Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createResolvingCall [9] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/UpdateLibrariesIndex", deadline=Infinity
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.618Z | v1.13.0 11576 | resolving_call | [9] Created
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.618Z | v1.13.0 11576 | resolving_call | [9] Deadline: Infinity
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.618Z | v1.13.0 11576 | resolving_call | [9] start called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.618Z | v1.13.0 11576 | resolving_call | [9] write() called with message of length 4
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.618Z | v1.13.0 11576 | resolving_call | [9] halfClose called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createRetryingCall [10] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/UpdateIndex"
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | resolving_call | [8] Created child [10]
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | retrying_call | [10] start called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createLoadBalancingCall [11] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/UpdateIndex"
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | retrying_call | [10] Created child call [11] for attempt 1
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | load_balancing_call | [11] start called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | load_balancing_call | [11] Pick called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | load_balancing_call | [11] Pick result: COMPLETE subchannel: (1) 127.0.0.1:54013 status: undefined undefined
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createRetryingCall [12] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/UpdateLibrariesIndex"
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | resolving_call | [9] Created child [12]
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | retrying_call | [12] start called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | channel | (1) dns:localhost:54013 createLoadBalancingCall [13] method="/cc.arduino.cli.commands.v1.ArduinoCoreService/UpdateLibrariesIndex"
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | retrying_call | [12] Created child call [13] for attempt 1
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | load_balancing_call | [13] start called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | load_balancing_call | [13] Pick called
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.620Z | v1.13.0 11576 | load_balancing_call | [13] Pick result: COMPLETE subchannel: (1) 127.0.0.1:54013 status: undefined undefined
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | transport_flowctrl | (1) 127.0.0.1:54013 local window size: 63573 remote window size: 65535
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | transport_internals | (1) 127.0.0.1:54013 session.closed=false session.destroyed=false session.socket.destroyed=false
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | load_balancing_call | [11] Created child call [14]
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | transport_flowctrl | (1) 127.0.0.1:54013 local window size: 63573 remote window size: 65535
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | transport_internals | (1) 127.0.0.1:54013 session.closed=false session.destroyed=false session.socket.destroyed=false
2026-09-25T05:26:44.622Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | load_balancing_call | [13] Created child call [15]
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | retrying_call | [10] write() called with message of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | load_balancing_call | [11] write() called with message of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | subchannel_call | [14] write() called with message of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | subchannel_call | [14] sending data chunk of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | retrying_call | [10] halfClose called
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | retrying_call | [12] write() called with message of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | load_balancing_call | [13] write() called with message of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | subchannel_call | [15] write() called with message of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | subchannel_call | [15] sending data chunk of length 9
2026-09-25T05:26:44.623Z root ERROR D 2026-09-25T05:26:44.621Z | v1.13.0 11576 | retrying_call | [12] halfClose called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.623Z | v1.13.0 11576 | resolving_call | [8] startRead called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.623Z | v1.13.0 11576 | retrying_call | [10] startRead called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.623Z | v1.13.0 11576 | load_balancing_call | [11] startRead called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.623Z | v1.13.0 11576 | resolving_call | [9] startRead called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.623Z | v1.13.0 11576 | retrying_call | [12] startRead called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.623Z | v1.13.0 11576 | load_balancing_call | [13] startRead called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.624Z | v1.13.0 11576 | subchannel_call | [7] HTTP/2 stream closed with code 0
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.624Z | v1.13.0 11576 | load_balancing_call | [11] halfClose called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.624Z | v1.13.0 11576 | subchannel_call | [14] end() called
2026-09-25T05:26:44.624Z root ERROR D 2026-09-25T05:26:44.624Z | v1.13.0 11576 | subchannel_call | [14] calling end() on HTTP/2 stream
2026-09-25T05:26:44.625Z root ERROR D 2026-09-25T05:26:44.624Z | v1.13.0 11576 | load_balancing_call | [13] halfClose called
2026-09-25T05:26:44.625Z root ERROR D 2026-09-25T05:26:44.624Z | v1.13.0 11576 | subchannel_call | [15] end() called
2026-09-25T05:26:44.625Z root ERROR D 2026-09-25T05:26:44.624Z | v1.13.0 11576 | subchannel_call | [15] calling end() on HTTP/2 stream
2026-09-25T05:26:44.625Z daemon INFO time="2026-09-25T10:56:44+05:30" level=info msg="Loading hardware from: C:\\Users\\acer\\AppData\\Local\\Arduino15\\packages"
time="2026-09-25T10:56:44+05:30" level=info msg="Loading libraries index file" index="C:\\Users\\acer\\AppData\\Local\\Arduino15\\library_index.json"
time="2026-09-25T10:56:44+05:30" level=info msg="Adding libraries dir" dir="C:\\Users\\acer\\AppData\\Local\\Arduino15\\libraries" isSingleLibrary=false location=ide
time="2026-09-25T10:56:44+05:30" level=info msg="Adding libraries dir" dir="C:\\Users\\acer\\Documents\\Arduino\\libraries" isSingleLibrary=false location=user
2026-09-25T05:26:44.626Z daemon INFO time="2026-09-25T10:56:44+05:30" level=info msg="Updating index" url="https://downloads.arduino.cc/packages/package_index.tar.bz2"
2026-09-25T05:26:44.627Z daemon INFO time="2026-09-25T10:56:44+05:30" level=info msg="Starting download" url="https://downloads.arduino.cc/libraries/library_index.tar.bz2"
2026-09-25T05:26:44.628Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | subchannel_call | [15] Received server headers:
                :status: 200
                content-type: application/grpc

2026-09-25T05:26:44.628Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | load_balancing_call | [13] Received metadata
2026-09-25T05:26:44.628Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | retrying_call | [12] Received metadata from child [13]
2026-09-25T05:26:44.628Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | retrying_call | [12] Committing call [13] at index 0
2026-09-25T05:26:44.628Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | resolving_call | [9] Received metadata
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | subchannel_call | [15] receive HTTP/2 data frame of length 113
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | subchannel_call | [15] parsed message of length 113
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | subchannel_call | [15] pushing to reader message of length 113
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | load_balancing_call | [13] Received message
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | retrying_call | [12] Received message from child [13]
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | resolving_call | [9] Received message
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.628Z | v1.13.0 11576 | resolving_call | [9] Finished filtering received message
2026-09-25T05:26:44.630Z root INFO core-client-provider [library-index] Downloading index: library_index.tar.bz2

2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.630Z | v1.13.0 11576 | resolving_call | [9] startRead called
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.630Z | v1.13.0 11576 | retrying_call | [12] startRead called
2026-09-25T05:26:44.630Z root ERROR D 2026-09-25T05:26:44.630Z | v1.13.0 11576 | load_balancing_call | [13] startRead called
2026-09-25T05:26:44.631Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | subchannel_call | [14] Received server headers:
                :status: 200
                content-type: application/grpc

2026-09-25T05:26:44.631Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | load_balancing_call | [11] Received metadata
2026-09-25T05:26:44.631Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | retrying_call | [10] Received metadata from child [11]
2026-09-25T05:26:44.631Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | retrying_call | [10] Committing call [11] at index 0
2026-09-25T05:26:44.631Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | resolving_call | [8] Received metadata
2026-09-25T05:26:44.632Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | subchannel_call | [14] receive HTTP/2 data frame of length 112
2026-09-25T05:26:44.632Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | subchannel_call | [14] parsed message of length 112
2026-09-25T05:26:44.632Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | subchannel_call | [14] pushing to reader message of length 112
2026-09-25T05:26:44.632Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | load_balancing_call | [11] Received message
2026-09-25T05:26:44.632Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | retrying_call | [10] Received message from child [11]
2026-09-25T05:26:44.632Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | resolving_call | [8] Received message
2026-09-25T05:26:44.632Z root ERROR D 2026-09-25T05:26:44.631Z | v1.13.0 11576 | resolving_call | [8] Finished filtering received message
2026-09-25T05:26:44.632Z root INFO core-client-provider [platform-index] Downloading index: package_index.tar.bz2

2026-09-25T05:26:44.633Z root ERROR D 2026-09-25T05:26:44.632Z | v1.13.0 11576 | resolving_call | [8] startRead called
2026-09-25T05:26:44.633Z root ERROR D 2026-09-25T05:26:44.632Z | v1.13.0 11576 | retrying_call | [10] startRead called
2026-09-25T05:26:44.633Z root ERROR D 2026-09-25T05:26:44.632Z | v1.13.0 11576 | load_balancing_call | [11] startRead called
2026-09-25T05:26:44.633Z daemon INFO time="2026-09-25T10:56:44+05:30" level=info msg="Starting download" url="https://downloads.arduino.cc/packages/package_index.tar.bz2"

ptillisch · September 25, 2026, 5:32am

Now we have a smoking gun!:

nimishasingh:

2026-09-25T05:26:44.598Z root ERROR Detected an error response during the gRPC core client initialization: code: 3, message: Error downloading index 'https://downloads.arduino.cc/libraries/library_index.tar.bz2': Download failed: performing HEAD request: Head "https://downloads.arduino.cc/libraries/library_index.tar.bz2": context deadline exceeded (Client.Timeout exceeded while awaiting headers)

Arduino IDE downloads some files from the Internet on startup. The file download failed. This failure is the cause of the hang on startup.

Is there anything notable about the network your computer uses to connect to the Internet? Are you using a VPN or proxy server?

nimishasingh · September 25, 2026, 5:40am

Yes, I'm using proxy server.

ptillisch · September 25, 2026, 5:59am

OK, great. So you will need to configure Arduino IDE to access the Internet via the proxy server.

Arduino IDE does allow you to do this via its convenient preferences GUI, but unfortunately this is a "catch 22" situation where you can't access that GUI because the IDE won't start up. So it will be necessary to instead configure the proxy by directly editing a configuration file. I'll provide instructions you can follow to do that:

If Arduino IDE is running, close the Arduino IDE window.
Start any text editor application.
Open the file at the following path on your hard drive in the text editor:
```
C:\Users\acer\.arduinoIDE\arduino-cli.yaml
```

Add the following content to the bottom of the arduino-cli.yaml file:

network:
  proxy: <schema>://<username>:<password>@<host>:<port>/

Replace the <schema> placeholder with the schema for your proxy server. It should either be http if it is an HTTP proxy server, or socks5 if it is instead a SOCKS proxy server.
Replace the <username> placeholder with the username for the credentials you use to access the proxy server.
Replace the <password> placeholder with the password for the credentials you use to access the proxy server.
Replace the <host> placeholder with the web host name of the proxy server.
Replace the <port> placeholder with the port number of the proxy server.
Save the file in the text editor.

For example, if I accessed the Internet through an HTTP proxy server with the host name example.com, and port 1234, with the credentials per and correcthorsebatterystaple, then my `arduino-cli.yaml file should look like this:

board_manager:
    additional_urls: []
network:
  proxy: http://per:correcthorsebatterystaple@example.com:1234/

Now try starting Arduino IDE again. Hopefully it will be able to fully start up.

nimishasingh · September 28, 2026, 5:27am

I did not knew the credentials for the proxy server, so couldn't use this suggested method. But it worked with a different network (without proxy).
Thanks a lot for your time and all the help!!!

ptillisch · September 28, 2026, 6:01am

You are welcome. I'm glad you were able to find a way to get it working. Thanks for taking the time to post an update!

Regards, Per

xfpd · September 28, 2026, 1:50pm

No. Only after/during updates. Usually (every day but update-day) the IDE takes less than one minute to be ready to use after launching the IDE.

Topic		Replies	Views
Arduino IDE 2.3.6 doesn't open IDE 2.x	7	978	November 2, 2025
Arduino IDE won't open IDE 2.x	2	765	January 23, 2026
My Arduino IDE 2.3.6 is stuck on the loading screen (it keep showing the piping Arduino logo) IDE 2.x	6	1347	October 24, 2025
Arduino IDE is not opening IDE 2.x	7	5294	March 20, 2025
My Arduino IDE 2.3.8 is stuck on the loading screen (it keep showing the piping Arduino logo) IDE 2.x	11	560	June 29, 2026

Problem with Arduiono IDE

Related topics