IDE hangs on startup: "Failed to initialize the CLI configuration"

Development Tools IDE 2.x
1 
PS C:\Program Files\Arduino IDE> & ".\Arduino IDE"
PS C:\Program Files\Arduino IDE>
Arduino IDE 2.3.2
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: "2.3.2" (type of string)
Setting 'theia.frontend.config.cliVersion' application configuration value to: "0.35.3" (type of string)
Setting 'theia.frontend.config.buildDate' application configuration value to: "2024-02-20T10:04:35.814Z" (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}${appName}","files.autoSave":"afterDelay","editor.minimap.enabled":false,"editor.tabSize":2,"editor.scrollBeyondLastLine":false,"editor.quickSuggestions":{"other":false,"comments":false,"strings":false},"editor.maxTokenizationLineLength":500,"editor.bracketPairColorization.enabled":false,"breadcrumbs.enabled":false,"workbench.tree.renderIndentGuides":"none","explorer.compactFolders":false},"appVersion":"2.3.2","cliVersion":"0.35.3","buildDate":"2024-02-20T10:04:35.814Z"}
Starting backend process. PID: 8356
Using browser-only version of superagent in non-browser environment
Configuration directory URI: 'file:///c%3A/Users/Carlos%20Monge/.arduinoIDE'
Configuring to accept webviews on '^.+\.webview\..+$' hostname.
2024-09-20T09:03:46.112Z root INFO Backend Object.initialize: 3.2 ms [Finished 0.390 s after backend start]
2024-09-20T09:03:46.113Z root INFO Backend Object.configure: 2.5 ms [Finished 0.390 s after backend start]
2024-09-20T09:03:46.113Z root INFO Backend s.onStart: 1.3 ms [Finished 0.390 s after backend start]
2024-09-20T09:03:46.114Z root INFO Backend s.configure: 0.2 ms [Finished 0.407 s after backend start]
2024-09-20T09:03:46.114Z root INFO Backend d.onStart: 0.2 ms [Finished 0.407 s after backend start]
2024-09-20T09:03:46.115Z root INFO Backend d.configure: 0.1 ms [Finished 0.408 s after backend start]
2024-09-20T09:03:46.115Z root INFO Backend d.initialize: 17.0 ms [Finished 0.408 s after backend start]
2024-09-20T09:03:46.115Z root INFO Backend c.onStart: 0.2 ms [Finished 0.408 s after backend start]
2024-09-20T09:03:46.116Z root INFO Backend a.configure: 0.9 ms [Finished 0.409 s after backend start]
2024-09-20T09:03:46.118Z config INFO >>> Initializing CLI configuration...
2024-09-20T09:03:46.118Z root INFO Backend c.initialize: 0.4 ms [Finished 0.409 s after backend start]
2024-09-20T09:03:46.118Z root INFO Backend R.onStart: 0.5 ms [Finished 0.409 s after backend start]
2024-09-20T09:03:46.119Z config INFO Loading CLI configuration from c:\Users\Carlos Monge\.arduinoIDE\arduino-cli.yaml...
2024-09-20T09:03:46.119Z daemon INFO Starting daemon from C:\Program Files\Arduino IDE\resources\app\lib\backend\resources\arduino-cli.exe...
2024-09-20T09:03:46.119Z root INFO Backend a.initialize: 0.3 ms [Finished 0.410 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend w.onStart: 1.0 ms [Finished 0.411 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend r.configure: 1.5 ms [Finished 0.411 s after backend start]
2024-09-20T09:03:46.119Z discovery-log INFO start
2024-09-20T09:03:46.119Z discovery-log INFO start new deferred
2024-09-20T09:03:46.119Z root INFO Backend d.initialize: 0.5 ms [Finished 0.411 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend y.onStart: 2.3 ms [Finished 0.413 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend r.configure: 1.9 ms [Finished 0.413 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend a.onStart: 0.4 ms [Finished 0.414 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend h.configure: 0.4 ms [Finished 0.414 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend s.configure: 0.1 ms [Finished 0.415 s after backend start]
2024-09-20T09:03:46.119Z root INFO Backend l.configure: 0.1 ms [Finished 0.415 s after backend start]
2024-09-20T09:03:46.122Z root INFO Theia app listening on http://127.0.0.1:51026.
2024-09-20T09:03:46.122Z root INFO Finished starting backend application: 2.3 ms [Finished 0.417 s after backend start]
2024-09-20T09:03:46.122Z root WARN The local plugin referenced by local-dir:/c%3A/Users/Carlos%20Monge/.arduinoIDE/plugins does not exist.
2024-09-20T09:03:46.122Z root WARN The local plugin referenced by local-dir:/c%3A/Users/Carlos%20Monge/.arduinoIDE/extensions does not exist.
2024-09-20T09:03:46.122Z root WARN The local plugin referenced by local-dir:C:\Users\Carlos Monge\.arduinoIDE\plugins does not exist.
2024-09-20T09:03:46.129Z config INFO Loaded CLI configuration: {"board_manager":{"additional_urls":[]}}
2024-09-20T09:03:46.129Z config ERROR Failed to initialize the CLI configuration. TypeError: Cannot read properties of undefined (reading 'data')
    at R.loadCliConfig (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:614605)
    at async R.initConfig (C:\Program Files\Arduino IDE\resources\app\lib\backend\main.js:2:613378)
2024-09-20T09:03:46.157Z root INFO Resolve plugins list: 38.4 ms [Finished 0.452 s after backend start]
2024-09-20T09:03:46.230Z daemon INFO time="2024-09-20T11:03:46+02:00" level=info msg="Using config file: c:\\Users\\Carlos Monge\\.arduinoIDE\\arduino-cli.yaml"
time="2024-09-20T11:03:46+02:00" level=info msg="arduino-cli.exe version 0.35.3"
time="2024-09-20T11:03:46+02:00" level=info msg="Executing `arduino-cli daemon`"
Daemon is now listening on 127.0.0.1:51027
{"IP":"127.0.0.1","Port":"51027"}
2024-09-20T09:03:46.230Z daemon INFO Daemon is running.
2024-09-20T09:03:46.292Z daemon INFO time="2024-09-20T11:03:46+02:00" level=info msg="Checking signature" index="C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\package_index.json" signatureFile="C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\package_index.json.sig" trusted=true
time="2024-09-20T11:03:46+02:00" level=info msg="Loading hardware from: C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\packages"
time="2024-09-20T11:03:46+02:00" level=info msg="Loading package arduino from: C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\packages\\arduino"
time="2024-09-20T11:03:46+02:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\packages\\arduino\\tools"
time="2024-09-20T11:03:46+02:00" level=info msg="Loading tools from dir: C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\packages\\arduino\\tools"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="arduino:arduinoOTA@1.3.0"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="arduino:avr-gcc@7.3.0-atmel3.6.1-arduino7"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="arduino:avrdude@6.3.0-arduino17"
time="2024-09-20T11:03:46+02:00" level=info msg="Loading package builtin from: C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\packages\\builtin"
time="2024-09-20T11:03:46+02:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
time="2024-09-20T11:03:46+02:00" level=info msg="Loading tools from dir: C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="builtin:ctags@5.8-arduino11"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="builtin:dfu-discovery@0.1.2"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="builtin:mdns-discovery@1.0.9"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="builtin:serial-discovery@1.4.1"
time="2024-09-20T11:03:46+02:00" level=info msg="Loaded tool" tool="builtin:serial-monitor@0.14.1"
time="2024-09-20T11:03:46+02:00" level=info msg="Loading libraries index file" index="C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\library_index.json"
2024-09-20T09:03:46.452Z daemon INFO time="2024-09-20T11:03:46+02:00" level=info msg="Adding libraries dir" dir="C:\\Users\\Carlos Monge\\AppData\\Local\\Arduino15\\libraries" location=ide
time="2024-09-20T11:03:46+02:00" level=info msg="Adding libraries dir" dir="C:\\Users\\Carlos Monge\\OneDrive - Espais Nautics, S.L\\Documentos\\Arduino\\libraries" location=user
2024-09-20T09:03:46.805Z root INFO Deploy plugins list: 38.4 ms [Finished 1.100 s after backend start]
Opening channel for service path '/services/electron-window'.
Opening channel for service path '/services/ide-updater'.
2024-09-20T09:03:47.532Z root WARN Frontend a.configure took longer than the expected maximum 100 milliseconds: 113.8 ms [Finished 1.332 s after frontend start]
2024-09-20T09:03:47.532Z root WARN A command editor.action.toggleStickyScroll is already registered.
[6612:0920/110347.602:ERROR:accelerator_util.cc(24)] The accelerator string can only contain ASCII characters, invalid string: "Ctrl+ç"
[6612:0920/110347.637:ERROR:accelerator_util.cc(24)] The accelerator string can only contain ASCII characters, invalid string: "Ctrl+ç"
Closing channel on service path '/services/electron-window'.
Closing channel on service path '/services/ide-updater'.
Stored workspaces roots:
No sketches were scheduled for deletion.
2

Usually caused by an error in c:\Users\Carlos Monge\.arduinoIDE\.arduino-cli.yaml and below should solve it.

  • Close the IDE.
  • Delete c:\Users\Carlos Monge\.arduinoIDE\arduino-cli.yaml.
  • Start the IDE.

Notes:

  1. Please use code tags when posting this type of output; see post #2 (which described each step) and How to get the best out of this forum.
  2. You should have started your own topic; and it's not clever to post a problem in a topic that is solved.
    I've created a dedicated topic for this.
3

Thanks a lot! It worked. Apologies, it was my first time adding a post. Now it's clearer. Thanks again!