search

flutter / devtools

Performance tools for Flutter
https://flutter.dev/docs/development/tools/devtools/
BSD 3-Clause "New" or "Revised" License
1.54k stars 314 forks source link

Assertion failure from lib/src/utils.dart:505:14 (TimeRange.start being set to null) #2430

Open devoncarew opened 3 years ago

devoncarew commented 3 years ago 
Error: Assertion failed: file:///Users/devoncarew/projects/flutter/devtools/packages/devtools_app/lib/src/utils.dart:505:14
_start == null
is not true
    at Object.throw_ [as throw] (http://localhost:9090/dart_sdk.js:4339:11)
    at Object.assertFailed (http://localhost:9090/dart_sdk.js:4282:15)
    at utils$2.TimeRange.new.set start [as start] (http://localhost:9090/packages/devtools_app/src/ui/gtags.dart.lib.js:105938:43)
    at http://localhost:9090/packages/devtools_app/src/ui/gtags.dart.lib.js:66087:24
    at timeline_processor.TimelineProcessor.new.processTimeline (http://localhost:9090/packages/devtools_app/src/ui/gtags.dart.lib.js:66090:13)
    at processTimeline.next (<anonymous>)
    at http://localhost:9090/dart_sdk.js:37679:33
    at _RootZone.runUnary (http://localhost:9090/dart_sdk.js:37533:58)
    at _FutureListener.thenAwait.handleValue (http://localhost:9090/dart_sdk.js:32507:29)
    at handleValueCallback (http://localhost:9090/dart_sdk.js:33054:49)
    at Function._propagateToListeners (http://localhost:9090/dart_sdk.js:33092:17)
    at _Future.new.[_complete] (http://localhost:9090/dart_sdk.js:32926:25)
    at http://localhost:9090/dart_sdk.js:32073:30
    at internalCallback (http://localhost:9090/dart_sdk.js:23835:11)
Error: Assertion failed: file:///Users/devoncarew/projects/flutter/devtools/packages/devtools_app/lib/src/utils.dart:505:14
_start == null
is not true
    at Object.throw_ [as throw] (http://localhost:9090/dart_sdk.js:4339:11)
    at Object.assertFailed (http://localhost:9090/dart_sdk.js:4282:15)
    at utils$2.TimeRange.new.set start [as start] (http://localhost:9090/packages/devtools_app/src/ui/gtags.dart.lib.js:105938:43)
    at http://localhost:9090/packages/devtools_app/src/ui/gtags.dart.lib.js:66087:24
    at timeline_processor.TimelineProcessor.new.processTimeline (http://localhost:9090/packages/devtools_app/src/ui/gtags.dart.lib.js:66090:13)
    at processTimeline.next (<anonymous>)
    at http://localhost:9090/dart_sdk.js:37679:33
    at _RootZone.runUnary (http://localhost:9090/dart_sdk.js:37533:58)
    at _FutureListener.thenAwait.handleValue (http://localhost:9090/dart_sdk.js:32507:29)
    at handleValueCallback (http://localhost:9090/dart_sdk.js:33054:49)
    at Function._propagateToListeners (http://localhost:9090/dart_sdk.js:33092:17)
    at _Future.new.[_complete] (http://localhost:9090/dart_sdk.js:32926:25)
    at http://localhost:9090/dart_sdk.js:32073:30
    at internalCallback (http://localhost:9090/dart_sdk.js:23835:11)
devoncarew commented 3 years ago

cc @terrylucas; for some reason, I mostly see this in the flutter web version of devtools, and less (or never?) with the flutter desktop version