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Got a stack frame from package:stack_trace, where a vm or web frame was expected
Asked Answered
Solved flutterdarterror-handlingflutter-web
O

3

15

I am using the web (Chrome) to run my application. But, I get an error. Here is the error:

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following assertion was thrown building Builder:
Assertion failed:
file:///Users/name/development/flutter/packages/flutter/lib/src/foundation/stack_frame.dart:192:7
line != '===== asynchronous gap ==========================='
"Got a stack frame from package:stack_trace, where a vm or web frame was expected. This can happen
if FlutterError.demangleStackTrace was not set in an environment that propagates non-standard stack
traces to the framework, such as during tests."

The relevant error-causing widget was:
  MaterialApp
  MaterialApp:file:///Users/name/development/projects/flutter/hello_world/lib/src/hello_world.dart:12:12

When the exception was thrown, this was the stack:
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 251:49      throw_
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 29:3        assertFailed
packages/flutter/src/foundation/stack_frame.dart 192:15                           fromStackTraceLine
dart-sdk/lib/internal/iterable.dart 391:20                                        moveNext
dart-sdk/lib/internal/iterable.dart 869:20                                        moveNext
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 748:20  next
dart-sdk/lib/_internal/js_dev_runtime/patch/core_patch.dart 586:14                of
dart-sdk/lib/core/iterable.dart 470:12                                            toList
packages/flutter/src/foundation/stack_frame.dart 87:37                            fromStackString
packages/flutter/src/foundation/assertions.dart 1066:54                           defaultStackFilter
packages/flutter/src/foundation/assertions.dart 1260:43                           _applyStackFilter
packages/flutter/src/foundation/assertions.dart 1235:17                           new
packages/flutter/src/foundation/assertions.dart 725:22                            debugFillProperties
packages/flutter/src/foundation/diagnostics.dart 2992:17                          <fn>
packages/flutter/src/foundation/diagnostics.dart 2994:16                          get builder
packages/flutter/src/foundation/assertions.dart 1285:56                           get builder
packages/flutter/src/foundation/diagnostics.dart 3009:105                         getProperties
packages/flutter/src/foundation/diagnostics.dart 1244:62                          [_debugRender]
packages/flutter/src/foundation/diagnostics.dart 1121:14                          render
packages/flutter/src/foundation/assertions.dart 1013:44                           dumpErrorToConsole
packages/app/main.dart 28:69                                                   <fn>
packages/flutter/src/foundation/assertions.dart 1177:14                           reportError
packages/flutter/src/widgets/framework.dart 6408:16                               _debugReportException
packages/flutter/src/widgets/framework.dart 4815:9                                performRebuild
packages/flutter/src/widgets/framework.dart 4977:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4968:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4977:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4968:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 6350:36                               inflateWidget
packages/flutter/src/widgets/framework.dart 6362:32                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4977:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4968:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4977:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4968:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4977:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4968:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4977:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4968:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4977:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4968:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 4832:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4529:5                                rebuild
packages/flutter/src/widgets/framework.dart 4787:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4781:5                                mount
packages/flutter/src/widgets/framework.dart 3817:15                               inflateWidget
packages/flutter/src/widgets/framework.dart 3551:18                               updateChild
packages/flutter/src/widgets/framework.dart 6215:14                               mount

This error only occurs when running my app using web (Chrome). If I use Android Emulator I don't get this error.

I referred to some posts like Widget test fails with No MediaQuery widget found, No MediaQuery widget ancestor found, No MediaQuery ancestor could be found? and other posts but still can't resolve this error.

Some code snippets:

main.dart:

import 'dart:async';

import 'package:flutter/material.dart';
…

Future<void> main() async {
  await runZonedGuarded(
    () async {
      WidgetsFlutterBinding.ensureInitialized();
      await Firebase.initializeApp();
      GoRouter.setUrlPathStrategy(UrlPathStrategy.path);
      runApp(const ProviderScope(child: MaterialApp(home: HelloWorld())));
      …
    },
    (Object error, StackTrace stack) {
      debugPrint(error.toString());
      debugPrint(stack.toString());
    },
  );
}

hello_world.dart:

import 'package:flutter/material.dart';

import 'package:hello_world/src/app.dart';
…

class HelloWorld extends StatelessWidget {
  const HelloWorld({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) => MaterialApp(
        theme: …,
        home: const App(),
      );
}

app.dart:

import 'package:flutter/material.dart';
…

class App extends ConsumerStatefulWidget {
  const App({Key? key}) : super(key: key);

  @override
  ConsumerState<App> createState() => _AppState();
}

class _AppState extends ConsumerState<App> {
  @override
  void initState() {
    super.initState();
    kIsWeb ? null : …;
  }

  @override
  Widget build(BuildContext context) {
    …

    return Scaffold(
      body: …,
    );
  }
}

I am not very sure whether the error is derived from this line:

runApp(const ProviderScope(child: MaterialApp(home: HelloWorld())));

How can I fix this error? Appreciate if someone can advise. Thank you in advance!

Overhear answered 3/9, 2022 at 11:10 Comment(2)
Please include a codesnippet that causes the issue – Gatias
I recommend creating a reproducible example and filing an issue. – Palpitation
O
33

I solved this error by setting FlutterError.demangleStackTrace:

import 'package:stack_trace/stack_trace.dart' as stack_trace;

void main() {
  runApp(const HelloWorld());
  FlutterError.demangleStackTrace = (StackTrace stack) {
    if (stack is stack_trace.Trace) return stack.vmTrace;
    if (stack is stack_trace.Chain) return stack.toTrace().vmTrace;
    return stack;
  };
}
Overhear answered 19/9, 2022 at 8:43 Comment(6)
Where are you setting this? – Valued
@Valued void main() – Overhear
what's causing this? – Wheelman
@DeanVillamia sorry, I don't understand. What does "this" mean? – Overhear
ahh the error itself, what's the root cause of it~ or any github thing I can checkout hehehe – Wheelman
@DeanVillamia My understanding is some packages create a different format of stack trace to those produced by the VM, maybe via package:stack_trace (Riverpod uses it for example). But Flutter expects to parse normal VM stack traces, so it lets us set FlutterError.demangleStackTrace to perform a custom conversion back to a VM stack trace. – Cthrine
G
3

A colleague of mine had a similar error and that was due to an empty string given to a network image. I can see in your stacktrace there is an error thrown in iterable.dart > moveNext. So it makes me think that your issue is caused by an invalid loop or something similar.

Gatias answered 7/9, 2022 at 8:16 Comment(1)
I don't think there is invalid loop in my code. – Overhear
S
2

I had the same error and did these things and it worked.

  1. Use the demangleStackTrace function

  2. Run the flutter clean command in the terminal, then upgrade the Firebase dependencies to the new version.

Sea answered 4/12, 2022 at 23:11 Comment(0)

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