IDE hangs on startup: "discovery teensy:teensy-discovery not found"

The application will never open, and I am the only user on this computer.

I have this error when I try to open Arduino IDE 2.3.2 on Windows 11:

Arduino IDE 2.3.2
Checking for frontend application configuration customizations. Module path: C:\Users\ruben\AppData\Local\Programs\Arduino IDE\resources\app\lib\backend\electron-main.js, destination 'package.json': C:\Users\ruben\AppData\Local\Programs\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}${appName}","files.autoSave":"afterDelay","editor.minimap.enabled":false,"editor.tabSize":2,"editor.scrollBeyondLastLine":false,"editor.quickSuggestions":{"other":false,"comments":false,"strings":false},"editor.maxTokenizationLineLength":500,"editor.bracketPairColorization.enabled":false,"breadcrumbs.enabled":false,"workbench.tree.renderIndentGuides":"none","explorer.compactFolders":false},"appVersion":"2.3.2","cliVersion":"0.35.3","buildDate":"2024-02-20T10:04:35.814Z"}
Starting backend process. PID: 6180
Using browser-only version of superagent in non-browser environment
Configuration directory URI: 'file:///c%3A/Users/ruben/.arduinoIDE'
Configuring to accept webviews on '^.+\.webview\..+$' hostname.
2024-08-29T18:13:54.488Z root INFO Backend Object.initialize: 8.0 ms [Finished 0.991 s after backend start]
2024-08-29T18:13:54.490Z root INFO Backend Object.configure: 6.6 ms [Finished 0.992 s after backend start]
2024-08-29T18:13:54.490Z root INFO Backend s.onStart: 3.0 ms [Finished 0.992 s after backend start]
2024-08-29T18:13:54.491Z root INFO Backend s.configure: 0.5 ms [Finished 1.030 s after backend start]
2024-08-29T18:13:54.492Z root INFO Backend d.onStart: 0.4 ms [Finished 1.030 s after backend start]
2024-08-29T18:13:54.494Z root INFO Backend d.configure: 0.2 ms [Finished 1.031 s after backend start]
2024-08-29T18:13:54.497Z root INFO Backend d.initialize: 39.0 ms [Finished 1.031 s after backend start]
2024-08-29T18:13:54.497Z root INFO Backend c.onStart: 0.5 ms [Finished 1.031 s after backend start]
2024-08-29T18:13:54.498Z root INFO Backend a.configure: 2.4 ms [Finished 1.034 s after backend start]
2024-08-29T18:13:54.501Z config INFO >>> Initializing CLI configuration...
2024-08-29T18:13:54.501Z root INFO Backend c.initialize: 1.0 ms [Finished 1.034 s after backend start]
2024-08-29T18:13:54.501Z root INFO Backend R.onStart: 1.5 ms [Finished 1.035 s after backend start]
2024-08-29T18:13:54.503Z config INFO Loading CLI configuration from c:\Users\ruben\.arduinoIDE\arduino-cli.yaml...
2024-08-29T18:13:54.504Z daemon INFO Starting daemon from C:\Users\ruben\AppData\Local\Programs\Arduino IDE\resources\app\lib\backend\resources\arduino-cli.exe...
2024-08-29T18:13:54.504Z root INFO Backend a.initialize: 1.0 ms [Finished 1.038 s after backend start]
2024-08-29T18:13:54.504Z root INFO Backend w.onStart: 2.9 ms [Finished 1.040 s after backend start]
2024-08-29T18:13:54.504Z root INFO Backend r.configure: 4.5 ms [Finished 1.040 s after backend start]
2024-08-29T18:13:54.504Z discovery-log INFO start
2024-08-29T18:13:54.504Z discovery-log INFO start new deferred
2024-08-29T18:13:54.504Z root INFO Backend d.initialize: 0.9 ms [Finished 1.041 s after backend start]
2024-08-29T18:13:54.504Z root INFO Backend y.onStart: 4.2 ms [Finished 1.044 s after backend start]
2024-08-29T18:13:54.505Z root INFO Backend r.configure: 3.6 ms [Finished 1.045 s after backend start]
2024-08-29T18:13:54.505Z root INFO Backend a.onStart: 1.0 ms [Finished 1.047 s after backend start]
2024-08-29T18:13:54.505Z root INFO Backend h.configure: 0.9 ms [Finished 1.047 s after backend start]
2024-08-29T18:13:54.505Z root INFO Backend s.configure: 0.2 ms [Finished 1.048 s after backend start]
2024-08-29T18:13:54.505Z root INFO Backend l.configure: 0.1 ms [Finished 1.048 s after backend start]
2024-08-29T18:13:54.510Z root INFO Theia app listening on http://127.0.0.1:54884.
2024-08-29T18:13:54.510Z root INFO Finished starting backend application: 5.5 ms [Finished 1.053 s after backend start]
2024-08-29T18:13:54.526Z root WARN The local plugin referenced by local-dir:/c%3A/Users/ruben/.arduinoIDE/plugins does not exist.
2024-08-29T18:13:54.527Z root WARN The local plugin referenced by local-dir:/c%3A/Users/ruben/.arduinoIDE/extensions does not exist.
2024-08-29T18:13:54.527Z root WARN The local plugin referenced by local-dir:C:\Users\ruben\.arduinoIDE\plugins does not exist.
2024-08-29T18:13:54.537Z config INFO Loaded CLI configuration: {"board_manager":{"additional_urls":[]},"build_cache":{"compilations_before_purge":10,"ttl":"720h0m0s"},"daemon":{"port":"50051"},"directories":{"data":"C:\\Users\\ruben\\AppData\\Local\\Arduino15","downloads":"C:\\Users\\ruben\\AppData\\Local\\Arduino15\\staging","user":"C:\\Users\\ruben\\Documents\\Arduino"},"library":{"enable_unsafe_install":false},"logging":{"file":"","format":"text","level":"info"},"metrics":{"addr":":9090","enabled":true},"output":{"no_color":false},"sketch":{"always_export_binaries":false},"updater":{"enable_notification":true}}
2024-08-29T18:13:54.537Z config INFO 'directories.data' and 'directories.user' are set in the CLI configuration model.
2024-08-29T18:13:54.537Z config INFO Loaded the CLI configuration.
2024-08-29T18:13:54.637Z daemon INFO time="2024-08-29T11:13:54-07:00" level=info msg="Using config file: c:\\Users\\ruben\\.arduinoIDE\\arduino-cli.yaml"
time="2024-08-29T11:13:54-07:00" level=info msg="arduino-cli.exe version 0.35.3"
2024-08-29T18:13:54.638Z daemon INFO time="2024-08-29T11:13:54-07:00" level=info msg="Executing `arduino-cli daemon`"
2024-08-29T18:13:54.651Z daemon INFO Daemon is now listening on 127.0.0.1:54885
{"IP":"127.0.0.1","Port":"54885"}
2024-08-29T18:13:54.651Z daemon INFO Daemon is running.
2024-08-29T18:13:55.169Z config INFO Mapped the CLI configuration: {"dataDirUri":"file:///c%3A/Users/ruben/AppData/Local/Arduino15","sketchDirUri":"file:///c%3A/Users/ruben/Documents/Arduino","additionalUrls":[],"network":"none","locale":"en"}
2024-08-29T18:13:55.169Z config INFO Validating the CLI configuration...
2024-08-29T18:13:55.176Z config INFO The CLI config is valid.
2024-08-29T18:13:55.176Z config INFO <<< Initialized the CLI configuration.
2024-08-29T18:13:55.203Z root INFO Resolve plugins list: 700.2 ms [Finished 1.745 s after backend start]
2024-08-29T18:13:56.612Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Checking signature" index="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\package_index.json" signatureFile="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\package_index.json.sig" trusted=true
2024-08-29T18:13:56.613Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loading hardware from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages"
2024-08-29T18:13:56.615Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loading package STMicroelectronics from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\hardware"
2024-08-29T18:13:56.857Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Adding monitor tool" protocol=serial tool="builtin:serial-monitor"
time="2024-08-29T11:13:56-07:00" level=info msg="Loaded platform" platform="STMicroelectronics:stm32@2.5.0"
2024-08-29T18:13:56.857Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\tools"
time="2024-08-29T11:13:56-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\tools"
2024-08-29T18:13:56.858Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:CMSIS@5.7.0"
2024-08-29T18:13:56.858Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:STM32Tools@2.2.0"
2024-08-29T18:13:56.858Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:xpack-arm-none-eabi-gcc@12.2.1-1.2"
2024-08-29T18:13:56.858Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:xpack-openocd@0.12.0-1"
2024-08-29T18:13:56.859Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loading package arduino from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware"
2024-08-29T18:13:56.861Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Adding monitor tool" protocol=serial tool="builtin:serial-monitor"
time="2024-08-29T11:13:56-07:00" level=info msg="Loaded platform" platform="arduino:megaavr@1.8.7"
2024-08-29T18:13:56.861Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\tools"
time="2024-08-29T11:13:56-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\tools"
2024-08-29T18:13:56.861Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="arduino:arduinoOTA@1.3.0"
2024-08-29T18:13:56.861Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="arduino:avr-gcc@7.3.0-atmel3.6.1-arduino5"
2024-08-29T18:13:56.862Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="arduino:avrdude@6.3.0-arduino17"
2024-08-29T18:13:56.862Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loading package builtin from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\builtin"
2024-08-29T18:13:56.863Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
time="2024-08-29T11:13:56-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
2024-08-29T18:13:56.863Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="builtin:ctags@5.8-arduino11"
2024-08-29T18:13:56.863Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="builtin:dfu-discovery@0.1.2"
2024-08-29T18:13:56.864Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="builtin:mdns-discovery@1.0.9"
2024-08-29T18:13:56.864Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="builtin:serial-discovery@1.4.0"
2024-08-29T18:13:56.864Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="builtin:serial-discovery@1.4.1"
2024-08-29T18:13:56.864Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="builtin:serial-monitor@0.13.0"
2024-08-29T18:13:56.864Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="builtin:serial-monitor@0.14.1"
2024-08-29T18:13:56.865Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loading package teensy from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\hardware"
2024-08-29T18:13:56.869Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Adding monitor tool" protocol=teensy tool="teensy:teensy-monitor"
time="2024-08-29T11:13:56-07:00" level=info msg="Loaded platform" platform="teensy:avr@1.58.1"
2024-08-29T18:13:56.869Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\tools"
time="2024-08-29T11:13:56-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\tools"
2024-08-29T18:13:56.870Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="teensy:teensy-compile@11.3.1"
2024-08-29T18:13:56.870Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loaded tool" tool="teensy:teensy-tools@1.58.0"
2024-08-29T18:13:56.872Z root ERROR Detected an error response during the gRPC core client initialization: code: 9, message: Error loading hardware platform: discovery teensy:teensy-discovery not found
2024-08-29T18:13:56.874Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.7\\libraries" location=platform
2024-08-29T18:13:56.877Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\hardware\\stm32\\2.5.0\\libraries" location=platform
2024-08-29T18:13:56.881Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\hardware\\avr\\1.58.1\\libraries" location=platform
2024-08-29T18:13:56.881Z daemon INFO time="2024-08-29T11:13:56-07:00" level=info msg="Loading libraries index file" index="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\library_index.json"
2024-08-29T18:13:57.090Z daemon INFO time="2024-08-29T11:13:57-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\libraries" location=ide
2024-08-29T18:13:57.091Z daemon INFO time="2024-08-29T11:13:57-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\Documents\\Arduino\\libraries" location=user
2024-08-29T18:13:58.107Z 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: Error loading hardware platform: discovery teensy:teensy-discovery not found

2024-08-29T18:13:58.108Z daemon INFO time="2024-08-29T11:13:58-07:00" level=info msg="Updating index" url="https://downloads.arduino.cc/packages/package_index.tar.bz2"
2024-08-29T18:13:58.110Z daemon INFO time="2024-08-29T11:13:58-07:00" level=info msg="Starting download" url="https://downloads.arduino.cc/packages/package_index.tar.bz2"
2024-08-29T18:13:58.112Z root INFO core-client-provider [platform-index] Downloading index: package_index.tar.bz2

Opening channel for service path '/services/electron-window'.
Opening channel for service path '/services/ide-updater'.
2024-08-29T18:13:59.999Z daemon INFO time="2024-08-29T11:13:59-07:00" level=info msg="Checking signature" index="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\package_index.json" signatureFile="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\package_index.json.sig" trusted=true
2024-08-29T18:14:00.000Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loading hardware from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages"
2024-08-29T18:14:00.002Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loading package STMicroelectronics from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\hardware"
2024-08-29T18:14:00.028Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding monitor tool" protocol=serial tool="builtin:serial-monitor"
time="2024-08-29T11:14:00-07:00" level=info msg="Loaded platform" platform="STMicroelectronics:stm32@2.5.0"
2024-08-29T18:14:00.028Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\tools"
time="2024-08-29T11:14:00-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\tools"
2024-08-29T18:14:00.029Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:CMSIS@5.7.0"
2024-08-29T18:14:00.029Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:STM32Tools@2.2.0"
2024-08-29T18:14:00.030Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:xpack-arm-none-eabi-gcc@12.2.1-1.2"
2024-08-29T18:14:00.030Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="STMicroelectronics:xpack-openocd@0.12.0-1"
2024-08-29T18:14:00.031Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loading package arduino from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware"
2024-08-29T18:14:00.033Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding monitor tool" protocol=serial tool="builtin:serial-monitor"
time="2024-08-29T11:14:00-07:00" level=info msg="Loaded platform" platform="arduino:megaavr@1.8.7"
2024-08-29T18:14:00.033Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\tools"
time="2024-08-29T11:14:00-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\tools"
2024-08-29T18:14:00.034Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="arduino:arduinoOTA@1.3.0"
2024-08-29T18:14:00.034Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="arduino:avr-gcc@7.3.0-atmel3.6.1-arduino5"
2024-08-29T18:14:00.034Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="arduino:avrdude@6.3.0-arduino17"
2024-08-29T18:14:00.035Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loading package builtin from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\builtin"
2024-08-29T18:14:00.035Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
time="2024-08-29T11:14:00-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\builtin\\tools"
2024-08-29T18:14:00.036Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="builtin:ctags@5.8-arduino11"
2024-08-29T18:14:00.037Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="builtin:dfu-discovery@0.1.2"
2024-08-29T18:14:00.037Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="builtin:mdns-discovery@1.0.9"
2024-08-29T18:14:00.037Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="builtin:serial-discovery@1.4.0"
2024-08-29T18:14:00.037Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="builtin:serial-discovery@1.4.1"
2024-08-29T18:14:00.037Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="builtin:serial-monitor@0.13.0"
2024-08-29T18:14:00.038Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="builtin:serial-monitor@0.14.1"
2024-08-29T18:14:00.038Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loading package teensy from: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\hardware"
2024-08-29T18:14:00.042Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding monitor tool" protocol=teensy tool="teensy:teensy-monitor"
time="2024-08-29T11:14:00-07:00" level=info msg="Loaded platform" platform="teensy:avr@1.58.1"
2024-08-29T18:14:00.042Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Checking existence of 'tools' path: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\tools"
time="2024-08-29T11:14:00-07:00" level=info msg="Loading tools from dir: C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\tools"
2024-08-29T18:14:00.043Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="teensy:teensy-compile@11.3.1"
2024-08-29T18:14:00.043Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Loaded tool" tool="teensy:teensy-tools@1.58.0"
2024-08-29T18:14:00.044Z root ERROR Detected an error response during the gRPC core client initialization: code: 9, message: Error loading hardware platform: discovery teensy:teensy-discovery not found
2024-08-29T18:14:00.047Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.7\\libraries" location=platform
2024-08-29T18:14:00.051Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\teensy\\hardware\\avr\\1.58.1\\libraries" location=platform
2024-08-29T18:14:00.054Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\hardware\\stm32\\2.5.0\\libraries" location=platform
time="2024-08-29T11:14:00-07:00" level=info msg="Loading libraries index file" index="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\library_index.json"
2024-08-29T18:14:00.221Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\AppData\\Local\\Arduino15\\libraries" location=ide
2024-08-29T18:14:00.222Z daemon INFO time="2024-08-29T11:14:00-07:00" level=info msg="Adding libraries dir" dir="C:\\Users\\ruben\\Documents\\Arduino\\libraries" location=user
2024-08-29T18:14:00.686Z root WARN Frontend a.configure took longer than the expected maximum 100 milliseconds: 1805.4 ms [Finished 6.030 s after frontend start]
2024-08-29T18:14:00.698Z root WARN A command editor.action.toggleStickyScroll is already registered.
2024-08-29T18:14:01.327Z 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:
[platform-index] - code: 9, message: Error loading hardware platform: discovery teensy:teensy-discovery not found

2024-08-29T18:14:01.327Z 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:
[platform-index] - code: 9, message: Error loading hardware platform: discovery teensy:teensy-discovery not found

    at C:\Users\ruben\AppData\Local\Programs\Arduino IDE\resources\app\lib\backend\main.js:2:622877
    at E.evaluateErrorStatus (C:\Users\ruben\AppData\Local\Programs\Arduino IDE\resources\app\lib\backend\main.js:2:622893)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async a.<anonymous> (C:\Users\ruben\AppData\Local\Programs\Arduino IDE\resources\app\lib\backend\main.js:2:622563)
2024-08-29T18:14:02.566Z root WARN Frontend D.onStart took longer than the expected maximum 100 milliseconds: 1722.1 ms [Finished 7.949 s after frontend start]
2024-08-29T18:14:18.206Z root INFO Deploy plugins list: 700.2 ms [Finished 24.749 s after backend start]

I'm not a specialist and I might be totally wrong but the issue is probably caused by the different times that you see in the first line above.

See if fixing your system time fixes the issue.


PS
Next time, please use code tags when posting this type of output; it just makes it easier to copy for analysis.

Okay makes sense will do that next time!

But the problem was solved after I deleted the Teensy folder (under packages) inside the Arduino15 folder...

When I run it again after deleting this folder it worked! I downloaded the Teensy package later :slight_smile:

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