Describe the bug

When I use "Test: Run All Tests" I get this error message

But I can't find the actual error output anywhere, there doesn't seem to be anything in the Debug console or the Output

I also get this, but as you can see I have a device attached

The tests do seem to run but the only indication of that is in the Debug console - the Testing tab shows 0 tests passed in the summary but then individual tests show as passing

To Reproduce

EDIT: I went into each sub-folder of the monorepo mentioned below and tried running tests until I narrowed it down to a flutter plugin and then specifically to an integration test in the web platform plugin's example project, found here:
packages/flutter/plugins/flutter_box2d/flutter_box2d_web/example/
It's a web integration test and follows the convention from https://docs.flutter.dev/cookbook/testing/integration/introduction#5b-web but I'm guessing that doesn't work with the test runner?

Steps to reproduce the behavior:
(I will try to create a minimal repro but in case this is useful in the meantime)

1. Clone https://github.com/enspyrco/monorepo
2. Set "dart.projectSearchDepth": 8 (I don't think it needs to be as high as 8 but it worked so I left it as 8)
3. Use the Test: Run All Tests command

Expected behavior
Tests show running state in the TESTING tab and all tests run.

• Operating System and version:
  MacOS 12.4

• VS Code version:
  1.68.1

• Dart extension version:
  3.42.1

• Dart/Flutter SDK version:
  Flutter 3.0.3

• Target device (if the issue relates to Flutter debugging):
  I have tried targets of macos and an iphone SE running 15.4.1