enjkvbej / navigator_manager Goto Github PK

 if(kIsWeb){
    setUrlStrategy(PathUrlStrategy());
  }

'package:flutter/src/widgets/navigator.dart': Failed assertion: line 3364 pos 14: 'observer.navigator == null': is not true.


Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
  https://github.com/flutter/flutter/issues/new?template=2_bug.md

The relevant error-causing widget was: 
  MaterialApp file:///.../main.dart:57:24
When the exception was thrown, this was the stack: 
#2      NavigatorState.initState (package:flutter/src/widgets/navigator.dart:3364:14)
#3      StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4632:57)
#4      ComponentElement.mount (package:flutter/src/widgets/framework.dart:4469:5)
#5      Element.inflateWidget (package:flutter/src/widgets/framework.dart:3541:14)
#6      Element.updateChild (package:flutter/src/widgets/framework.dart:3303:20)

var routes = {
  "/": (_, __) => CreateRoutePage(name: 'splash', child: PageSplash()),
};

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
   
    final _routerDelegate = LRouterDelegate(routes: routes);
    return MaterialApp.router(
      debugShowCheckedModeBanner: false,
      routerDelegate: _routerDelegate,
      routeInformationParser: LRouteInformationParser(),
    );
  }
}

clsss PageSplash extends StatelessWidget {
  Widget build(BuildContext context) {
    return Containre();
  }
}