Arduino IDE 2.3.3 doesnt load

I just installed Arduino IDE 2.3.3 but it got stuck in the loading page.
Here is the log if needed (i have no idea what is wrong it is just a fresh install from website):

PS C:\Program Files\Arduino IDE> & ".\Arduino IDE"
PS C:\Program Files\Arduino IDE>
Arduino IDE 2.3.3
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: "2.3.3" (type of string)
Setting 'theia.frontend.config.cliVersion' application configuration value to: "1.0.4" (type of string)
Setting 'theia.frontend.config.buildDate' application configuration value to: "2024-09-25T09:41:18.242Z" (type of string)
Frontend application configuration after modifications: {"applicationName":"Arduino IDE","defaultTheme":{"light":"arduino-theme","dark":"arduino-theme-dark"},"defaultIconTheme":"none","electron":{"windowOptions":{}},"defaultLocale":"","validatePreferencesSchema":false,"preferences":{"window.title":"${rootName}${activeEditorShort}${appName}","files.autoSave":"afterDelay","editor.minimap.enabled":false,"editor.tabSize":2,"editor.scrollBeyondLastLine":false,"editor.quickSuggestions":{"other":false,"comments":false,"strings":false},"editor.maxTokenizationLineLength":500,"editor.bracketPairColorization.enabled":false,"breadcrumbs.enabled":false,"workbench.tree.renderIndentGuides":"none","explorer.compactFolders":false},"appVersion":"2.3.3","cliVersion":"1.0.4","buildDate":"2024-09-25T09:41:18.242Z"}
Starting backend process. PID: 7736
Using browser-only version of superagent in non-browser environment
Configuration directory URI: 'file:///c%3A/Users/halil/.arduinoIDE'
Configuring to accept webviews on '^.+\.webview\..+$' hostname.
2024-10-29T09:00:28.743Z root INFO Backend Object.initialize: 2.7 ms [Finished 0.302 s after backend start]
2024-10-29T09:00:28.744Z root INFO Backend Object.configure: 2.3 ms [Finished 0.302 s after backend start]
2024-10-29T09:00:28.744Z root INFO Backend a.onStart: 1.0 ms [Finished 0.302 s after backend start]
2024-10-29T09:00:28.744Z root INFO Backend a.configure: 0.2 ms [Finished 0.316 s after backend start]
2024-10-29T09:00:28.744Z root INFO Backend d.onStart: 0.1 ms [Finished 0.316 s after backend start]
2024-10-29T09:00:28.745Z root INFO Backend d.configure: 0.1 ms [Finished 0.316 s after backend start]
2024-10-29T09:00:28.745Z root INFO Backend d.initialize: 13.6 ms [Finished 0.316 s after backend start]
2024-10-29T09:00:28.745Z root INFO Backend c.onStart: 0.1 ms [Finished 0.316 s after backend start]
2024-10-29T09:00:28.745Z root INFO Backend s.configure: 0.7 ms [Finished 0.317 s after backend start]
2024-10-29T09:00:28.747Z config INFO >>> Initializing CLI configuration...
2024-10-29T09:00:28.747Z root INFO Backend c.initialize: 0.3 ms [Finished 0.317 s after backend start]
2024-10-29T09:00:28.747Z root INFO Backend x.onStart: 0.4 ms [Finished 0.317 s after backend start]
2024-10-29T09:00:28.747Z config INFO Loading CLI configuration from c:\Users\halil\.arduinoIDE\arduino-cli.yaml...
2024-10-29T09:00:28.747Z daemon INFO Starting daemon from C:\Program Files\Arduino IDE\resources\app\lib\backend\resources\arduino-cli.exe...
2024-10-29T09:00:28.747Z root INFO Backend s.initialize: 0.2 ms [Finished 0.318 s after backend start]
2024-10-29T09:00:28.747Z root INFO Backend w.onStart: 0.6 ms [Finished 0.318 s after backend start]
2024-10-29T09:00:28.747Z root INFO Backend r.configure: 1.0 ms [Finished 0.318 s after backend start]
2024-10-29T09:00:28.747Z discovery-log INFO start
2024-10-29T09:00:28.747Z discovery-log INFO start new deferred
2024-10-29T09:00:28.747Z root INFO Backend d.initialize: 0.3 ms [Finished 0.318 s after backend start]
2024-10-29T09:00:28.747Z root INFO Backend y.onStart: 1.3 ms [Finished 0.320 s after backend start]
2024-10-29T09:00:28.747Z root INFO Backend r.configure: 1.2 ms [Finished 0.320 s after backend start]
2024-10-29T09:00:28.748Z root INFO Backend s.onStart: 0.2 ms [Finished 0.320 s after backend start]
2024-10-29T09:00:28.748Z root INFO Backend h.configure: 0.2 ms [Finished 0.320 s after backend start]
2024-10-29T09:00:28.748Z root INFO Backend a.configure: 0.1 ms [Finished 0.320 s after backend start]
2024-10-29T09:00:28.748Z root INFO Backend l.configure: 0.0 ms [Finished 0.320 s after backend start]
2024-10-29T09:00:28.749Z root INFO Theia app listening on http://127.0.0.1:52345.
2024-10-29T09:00:28.749Z root INFO Finished starting backend application: 1.5 ms [Finished 0.322 s after backend start]
2024-10-29T09:00:28.752Z root WARN The local plugin referenced by local-dir:/c%3A/Users/halil/.arduinoIDE/plugins does not exist.
2024-10-29T09:00:28.752Z root WARN The local plugin referenced by local-dir:/c%3A/Users/halil/.arduinoIDE/extensions does not exist.
2024-10-29T09:00:28.752Z root WARN The local plugin referenced by local-dir:C:\Users\halil\.arduinoIDE\plugins does not exist.
2024-10-29T09:00:28.761Z config INFO Loaded CLI configuration: {"board_manager":{"additional_urls":[]}}
2024-10-29T09:00:28.761Z config INFO Loading fallback CLI configuration to get 'directories.data' and 'directories.user'
2024-10-29T09:00:28.773Z root INFO Resolve plugins list: 26.0 ms [Finished 0.346 s after backend start]
2024-10-29T09:00:28.784Z daemon INFO time="2024-10-29T12:00:28+03:00" level=info msg="arduino-cli version 1.0.4"
time="2024-10-29T12:00:28+03:00" level=info msg="Using config file: c:\\Users\\halil\\.arduinoIDE\\arduino-cli.yaml"
time="2024-10-29T12:00:28+03:00" level=info msg="Executing `arduino-cli daemon`"
2024-10-29T09:00:28.788Z daemon INFO Daemon is now listening on 127.0.0.1:52346
{"IP":"127.0.0.1","Port":"52346"}
2024-10-29T09:00:28.788Z daemon INFO Daemon is running.
2024-10-29T09:00:28.792Z config INFO Loaded fallback CLI configuration: {"directories":{"user":"C:\\Users\\halil\\Documents\\Arduino","data":"C:\\Users\\halil\\AppData\\Local\\Arduino15"}}
2024-10-29T09:00:28.792Z config INFO Merged CLI configuration with the fallback: {"directories":{"user":"C:\\Users\\halil\\Documents\\Arduino","data":"C:\\Users\\halil\\AppData\\Local\\Arduino15"},"board_manager":{"additional_urls":[]}}
2024-10-29T09:00:28.792Z config INFO Loaded the CLI configuration.
2024-10-29T09:00:28.796Z config INFO Mapped the CLI configuration: {"dataDirUri":"file:///c%3A/Users/halil/AppData/Local/Arduino15","sketchDirUri":"file:///c%3A/Users/halil/Documents/Arduino","additionalUrls":[],"network":"none","locale":"en"}
2024-10-29T09:00:28.796Z config INFO Validating the CLI configuration...
2024-10-29T09:00:28.799Z config INFO The CLI config is valid.
2024-10-29T09:00:28.799Z config INFO <<< Initialized the CLI configuration.
2024-10-29T09:00:28.800Z daemon INFO time="2024-10-29T12:00:28+03:00" level=info msg="Starting download" url="https://downloads.arduino.cc/libraries/library_index.tar.bz2"
2024-10-29T09:00:29.181Z root INFO Deploy plugins list: 26.0 ms [Finished 0.754 s after backend start]
Opening channel for service path '/services/electron-window'.
Opening channel for service path '/services/ide-updater'.
2024-10-29T09:00:29.837Z root WARN A command editor.action.toggleStickyScroll is already registered.
[3316:1029/120029.885:ERROR:accelerator_util.cc(24)] The accelerator string can only contain ASCII characters, invalid string: "Ctrl+ö"
2024-10-29T09:00:32.336Z root ERROR Detected an error response during the gRPC core client initialization: code: 3, message: Error verifying signature: openpgp: signature expired
2024-10-29T09:00:32.340Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Checking signature" index="C:\\Users\\halil\\AppData\\Local\\Arduino15\\package_index.json" signatureFile="C:\\Users\\halil\\AppData\\Local\\Arduino15\\package_index.json.sig" trusted=true
2024-10-29T09:00:32.341Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Loading hardware from: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages"
2024-10-29T09:00:32.341Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Loading package builtin from: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages\\builtin"
time="2024-10-29T12:00:32+03:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
time="2024-10-29T12:00:32+03:00" level=info msg="Loading tools from dir: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
2024-10-29T09:00:32.341Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Loaded tool" tool="builtin:ctags@5.8-arduino11"
2024-10-29T09:00:32.341Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Loaded tool" tool="builtin:dfu-discovery@0.1.2"
2024-10-29T09:00:32.341Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Loaded tool" tool="builtin:mdns-discovery@1.0.9"
time="2024-10-29T12:00:32+03:00" level=info msg="Loaded tool" tool="builtin:serial-discovery@1.4.1"
2024-10-29T09:00:32.341Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Loaded tool" tool="builtin:serial-monitor@0.14.1"
2024-10-29T09:00:32.347Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Loading libraries index file" index="C:\\Users\\halil\\AppData\\Local\\Arduino15\\library_index.json"
2024-10-29T09:00:32.347Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Adding libraries dir" dir="C:\\Users\\halil\\AppData\\Local\\Arduino15\\libraries" isSingleLibrary=false location=ide
2024-10-29T09:00:32.347Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Adding libraries dir" dir="C:\\Users\\halil\\Documents\\Arduino\\libraries" isSingleLibrary=false location=user
2024-10-29T09:00:32.347Z 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\halil\AppData\Local\Arduino15\library_index.json: The system cannot find the file specified.
2024-10-29T09:00:32.350Z 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:
[library-index] - code: 9, message: Loading index file: reading library_index.json: open C:\Users\halil\AppData\Local\Arduino15\library_index.json: The system cannot find the file specified.

2024-10-29T09:00:32.351Z daemon INFO time="2024-10-29T12:00:32+03:00" level=info msg="Starting download" url="https://downloads.arduino.cc/libraries/library_index.tar.bz2"
2024-10-29T09:00:32.352Z root INFO core-client-provider [library-index] Downloading index: library_index.tar.bz2

2024-10-29T09:00:35.702Z daemon INFO time="2024-10-29T12:00:35+03:00" level=info msg="Starting download" url="https://downloads.arduino.cc/libraries/library_index.tar.bz2"
2024-10-29T09:00:39.100Z root ERROR Detected an error response during the gRPC core client initialization: code: 3, message: Error verifying signature: openpgp: signature expired
2024-10-29T09:00:39.106Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Checking signature" index="C:\\Users\\halil\\AppData\\Local\\Arduino15\\package_index.json" signatureFile="C:\\Users\\halil\\AppData\\Local\\Arduino15\\package_index.json.sig" trusted=true
2024-10-29T09:00:39.106Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Loading hardware from: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages"
2024-10-29T09:00:39.106Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Loading package builtin from: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages\\builtin"
2024-10-29T09:00:39.106Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
time="2024-10-29T12:00:39+03:00" level=info msg="Loading tools from dir: C:\\Users\\halil\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
2024-10-29T09:00:39.106Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Loaded tool" tool="builtin:ctags@5.8-arduino11"
2024-10-29T09:00:39.107Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Loaded tool" tool="builtin:dfu-discovery@0.1.2"
time="2024-10-29T12:00:39+03:00" level=info msg="Loaded tool" tool="builtin:mdns-discovery@1.0.9"
2024-10-29T09:00:39.107Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Loaded tool" tool="builtin:serial-discovery@1.4.1"
2024-10-29T09:00:39.107Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Loaded tool" tool="builtin:serial-monitor@0.14.1"
2024-10-29T09:00:39.112Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Loading libraries index file" index="C:\\Users\\halil\\AppData\\Local\\Arduino15\\library_index.json"
2024-10-29T09:00:39.112Z daemon INFO time="2024-10-29T12:00:39+03:00" level=info msg="Adding libraries dir" dir="C:\\Users\\halil\\AppData\\Local\\Arduino15\\libraries" isSingleLibrary=false location=ide
time="2024-10-29T12:00:39+03:00" level=info msg="Adding libraries dir" dir="C:\\Users\\halil\\Documents\\Arduino\\libraries" isSingleLibrary=false location=user
2024-10-29T09:00:39.112Z 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\halil\AppData\Local\Arduino15\library_index.json: The system cannot find the file specified.
2024-10-29T09:00:39.113Z root ERROR Uncaught Exception:  Error: 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:
[library-index] - code: 9, message: Loading index file: reading library_index.json: open C:\Users\halil\AppData\Local\Arduino15\library_index.json: The system cannot find the file specified.

2024-10-29T09:00:39.113Z root ERROR Error: 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:
[library-index] - code: 9, message: Loading index file: reading library_index.json: open C:\Users\halil\AppData\Local\Arduino15\library_index.json: The system cannot find the file specified.

    at C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:770471
    at v.evaluateErrorStatus (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:770487)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async s.<anonymous> (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:770157)

There is no such thing :smiley: Topic moved to the dedicated IDE 2.x section.

This is usually the result of an incorrect system time. Fix the time and that problem should be solved.

If you're using a dual boot system with Linux, you can find a little mnore info here: IDE hangs on startup: "openpgp: signature expired" - #7 by sterretje.

1 Like

Thank you very much. It is working now, i wonder why it doesnt open because of incorrect system time but whatever.

It's similar to a https website where the certificate has expired. Some browsers will tell you that something is wrong, some will not allow you to access the site as it's a potential security issue.