App crashes with "BuildOwner.scheduleBuildFor() called inappropriately." in callback for "ext.flutter.reassemble" when hot-reloading multiple times #154060
Description
Steps to reproduce
- Create an app with the provided code sample.
- Launch the app on iOS simulator.
- Trigger a Hot Reload. (No error should trigger at this stage.)
- Trigger another Hot Reload.
- Observe the below error.
It seems the issue is with using a global (or provider) GoRouter while having extendBodyBehindAppBar set to true on the HomeView's Scaffold widget.
Expected results
No error should be thrown when using GoRouter and extendBodyBehindAppBar.
Actual results
After the first Hot Reload, every consecutive Hot Reload triggers the following error:
The following assertion was thrown during a service extension callback for "ext.flutter.reassemble":
BuildOwner.scheduleBuildFor() called inappropriately.
The BuildOwner.scheduleBuildFor() method should only be called while the buildScope() method is actively rebuilding the widget tree.
Code sample
Code sample
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
runApp(const AppScreen());
}
// AppScreen
class AppScreen extends StatelessWidget {
const AppScreen({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp.router(
routerConfig: router,
);
}
}
// HomeView
class HomeView extends StatelessWidget {
const HomeView({super.key});
@override
Widget build(BuildContext context) {
return Stack(
children: [
Scaffold(
body: SizedBox(
width: double.maxFinite,
child: Container(color: Colors.pink),
),
extendBodyBehindAppBar: true,
),
],
);
}
}
// SignInView
class SignInView extends StatelessWidget {
const SignInView({super.key});
@override
Widget build(BuildContext context) {
return Container(color: Colors.green);
}
}
// Router
final router = GoRouter(
initialLocation: '/',
errorBuilder: (_, state) => Container(color: Colors.red),
redirect: (_, state) {
print(state.matchedLocation);
return (state.matchedLocation != '/sign-in') ? '/sign-in' : null;
},
routes: [
GoRoute(
name: 'home',
path: '/',
builder: (_, state) => HomeView(
key: state.pageKey,
),
routes: [
GoRoute(
name: 'signIn',
path: 'sign-in',
builder: (_, state) => SignInView(
key: state.pageKey,
),
),
],
),
],
);Screenshots or Video
Screenshots / Video demonstration
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Logs
Console log: Console log.txt
Flutter Doctor output
Doctor output
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• Flutter version 3.24.0 on channel stable at /.../flutter
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• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 15F31d
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• Android Studio at /Applications/Android Studio.app/Contents
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