'Flutter run works from command line but not with VsCode

I installed Flutter and I have a project that used it (Flutter Web). As IDE I use VsCode. When I run the app using command line (flutter run --no-sound-null-safety) it works well, instead when I use VsCode I get this error:

ChromeProxyService: Failed to evaluate expression 'Future': InternalError: No frame with index 17.
ChromeProxyService: Failed to evaluate expression 'that': InternalError: No frame with index 17.
...

enter image description here

I launch the app with fn+f5 and I created this .vscode/launch.json file:

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Web nosound null",
      "type": "dart",
      "request": "launch",
      "deviceId": "chrome",
      "args": [
        "--no-sound-null-safety"
      ]
    },
    {
      "name": "Web sound null",
      "type": "dart",
      "request": "launch",
      "deviceId": "chrome",
      "args": []
    },
  ]
}

I tried also flutter clean but nothing changes, also uninstall and reinstall Flutter seems not to solve the problem. VsCode is updated.

What am I wrong?



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