Debugger screen throws uncaught "ext.dwds.sendEvent" exception on load

[matt-ragonese]

Navigating to the Debugger screen results in an "ext.dwds.sendEvent" exception on load.

See screenshot below taken from Chrome DevTools.

[kenzieschmoll]

@annagrin

[kenzieschmoll]

Seeing another error related to ext.dwds.sendEvent @annagrin. This is in a release build from head (preparing for the 2.8.0 release)

[annagrin]

@matt-ragonese @kenzieschmoll how can I repro this? Do you know what version of dwds is used in those cases?

[kenzieschmoll]

Repro steps:

1. create a release build from HEAD, run ./tool/build_release.sh
2. run DevTools dart packages/devtools/bin/devtools.dart
3. navigate to the debugger page

Flutter 2.6.0-12.0.pre.568 • channel master • git@github.com:flutter/flutter.git
Framework • revision ef137e56b0 (12 minutes ago) • 2021-11-03 11:16:31 -0400
Engine • revision 6ae304aeef
Tools • Dart 2.15.0 (build 2.15.0-268.0.dev)

[annagrin]

Fixed in a couple of PRs in dwds:
dart-lang/webdev#1470
dart-lang/webdev#1518

Closing for now, please feel free to reopen if it happens again (I'd need repro steps in that case).