[go_router] Assertion was thrown when getting GoRouterState.of(context) inside a nested Navigator #132824
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
- Use go_router 10
- Run the code sample on chrome or simulator
- Observe the console output
It used to work with go_router 8.x.x when I was able to get the router location by using GoRouter.of(context).location.
Expected results
Able to get go router state within the routes of a nested Navigator.
Actual results
Assertion was thrown.
Code sample
Code sample
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
final router = GoRouter(routes: [
GoRoute(
path: '/',
builder: (BuildContext context, GoRouterState state) => const MyHomePage(),
),
]);
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp.router(
title: 'Flutter Demo',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
routerConfig: router,
);
}
}
class MyHomePage extends StatelessWidget {
const MyHomePage({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: Navigator(
pages: const [
MaterialPage(
child: MySubPage(),
),
],
onPopPage: (route, result) {
if (!route.didPop(result)) {
return false;
}
return true;
},
),
);
}
}
class MySubPage extends StatelessWidget {
const MySubPage({super.key});
@override
Widget build(BuildContext context) {
final fullPath = GoRouterState.of(context).fullPath ?? '';
return Center(
child: Text(fullPath),
);
}
}
Screenshots or Video
Screenshots / Video demonstration
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Logs
Logs
══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY
╞═══════════════════════════════════════════════════════════
The following assertion was thrown building MySubPage(dirty,
dependencies:
[GoRouterStateRegistryScope, _ModalScopeStatus]):
'package:go_router/src/state.dart': Failed assertion: line 204 pos
12: 'registry.containsKey(page)':
is not true.
The relevant error-causing widget was:
MySubPage
MySubPage:file:///Users/CrizantLai/Documents/go_router_test/lib/
main.dart:42:20
When the exception was thrown, this was the stack:
#2 GoRouterStateRegistry._createPageRouteAssociation
(package:go_router/src/state.dart:204:12)
#3 GoRouterState.of (package:go_router/src/state.dart:126:25)
#4 MySubPage.build (package:go_router_test/main.dart:61:36)
#5 StatelessElement.build
(package:flutter/src/widgets/framework.dart:5156:49)
#6 ComponentElement.performRebuild
(package:flutter/src/widgets/framework.dart:5086:15)
#7 Element.rebuild
(package:flutter/src/widgets/framework.dart:4805:7)
#8 ComponentElement._firstBuild
(package:flutter/src/widgets/framework.dart:5068:5)
#9 ComponentElement.mount
(package:flutter/src/widgets/framework.dart:5062:5)
... Normal element mounting (24 frames)
#33 Element.inflateWidget
(package:flutter/src/widgets/framework.dart:3971:16)
#34 MultiChildRenderObjectElement.inflateWidget
(package:flutter/src/widgets/framework.dart:6570:36)
#35 MultiChildRenderObjectElement.mount
(package:flutter/src/widgets/framework.dart:6582:32)
... Normal element mounting (178 frames)
#213 Element.inflateWidget
(package:flutter/src/widgets/framework.dart:3971:16)
#214 MultiChildRenderObjectElement.inflateWidget
(package:flutter/src/widgets/framework.dart:6570:36)
#215 MultiChildRenderObjectElement.mount
(package:flutter/src/widgets/framework.dart:6582:32)
... Normal element mounting (95 frames)
#310 Element.inflateWidget
(package:flutter/src/widgets/framework.dart:3971:16)
#311 MultiChildRenderObjectElement.inflateWidget
(package:flutter/src/widgets/framework.dart:6570:36)
#312 MultiChildRenderObjectElement.mount
(package:flutter/src/widgets/framework.dart:6582:32)
... Normal element mounting (140 frames)
#452 Element.inflateWidget
(package:flutter/src/widgets/framework.dart:3971:16)
#453 MultiChildRenderObjectElement.inflateWidget
(package:flutter/src/widgets/framework.dart:6570:36)
#454 MultiChildRenderObjectElement.mount
(package:flutter/src/widgets/framework.dart:6582:32)
... Normal element mounting (178 frames)
#632 Element.inflateWidget
(package:flutter/src/widgets/framework.dart:3971:16)
#633 MultiChildRenderObjectElement.inflateWidget
(package:flutter/src/widgets/framework.dart:6570:36)
#634 MultiChildRenderObjectElement.mount
(package:flutter/src/widgets/framework.dart:6582:32)
... Normal element mounting (525 frames)
#1159 Element.inflateWidget
(package:flutter/src/widgets/framework.dart:3971:16)
#1160 Element.updateChild
(package:flutter/src/widgets/framework.dart:3708:18)
#1161 RenderObjectToWidgetElement._rebuild
(package:flutter/src/widgets/binding.dart:1240:16)
#1162 RenderObjectToWidgetElement.mount
(package:flutter/src/widgets/binding.dart:1209:5)
#1163 RenderObjectToWidgetAdapter.attachToRenderTree.<anonymous
closure> (package:flutter/src/widgets/binding.dart:1156:18)
#1164 BuildOwner.buildScope
(package:flutter/src/widgets/framework.dart:2720:19)
#1165 RenderObjectToWidgetAdapter.attachToRenderTree
(package:flutter/src/widgets/binding.dart:1155:13)
#1166 WidgetsBinding.attachRootWidget
(package:flutter/src/widgets/binding.dart:988:7)
#1167 WidgetsBinding.scheduleAttachRootWidget.<anonymous
closure> (package:flutter/src/widgets/binding.dart:968:7)
#1171 _RawReceivePort._handleMessage
(dart:isolate-patch/isolate_patch.dart:189:12)
(elided 5 frames from class _AssertionError, class _Timer, and
dart:async-patch)
══════════════════════════════════════════════════════════════════
══════════════════════════════════Flutter Doctor output
Doctor output
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.10.6, on macOS 13.4.1 22F770820d
darwin-x64, locale en-AU)
[✓] Android toolchain - develop for Android devices (Android SDK
version 33.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 14.3.1)
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[✓] VS Code (version 1.81.1)
[✓] Connected device (3 available)
[✓] Network resources
• No issues found!