Flutter Bad State: Future already completed and Updated Layout info required - flutter

Question

Just started working on my app and I'm getting
Bad state: Future already completed
When the exception was thrown, this was the stack:
#1 WidgetsBinding.drawFrame.<anonymous closure> (package:flutter/src/widgets/binding.dart:865:30)
#2 SchedulerBinding._executeTimingsCallbacks (package:flutter/src/scheduler/binding.dart:289:19)
#6 _invoke1 (dart:ui/hooks.dart:182:10)
#7 PlatformDispatcher._reportTimings (dart:ui/platform_dispatcher.dart:441:5)
#8 _reportTimings (dart:ui/hooks.dart:120:31)
...
The TimingsCallback that gets executed was: Closure: (List<FrameTiming>) => void
But There is also
Updated layout information required for RenderParagraph#d3031 NEEDS-LAYOUT NEEDS-PAINT to calculate semantics.
'package:flutter/src/rendering/object.dart':
Failed assertion: line 2653 pos 12: '!_needsLayout'
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
When the exception was thrown, this was the stack:
#2 RenderObject._getSemanticsForParent (package:flutter/src/rendering/object.dart:2653:12)
#3 RenderObject._getSemanticsForParent.<anonymous closure> (package:flutter/src/rendering/object.dart:2675:61)
#4 ContainerRenderObjectMixin.visitChildren (package:flutter/src/rendering/object.dart:3331:14)
#5 RenderObject.visitChildrenForSemantics (package:flutter/src/rendering/object.dart:2760:5)
#6 RenderObject._getSemanticsForParent (package:flutter/src/rendering/object.dart:2670:5)
My code is this so far
Main.dart
void main() => runApp(AppName());
class AppName extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData.dark(),
initialRoute: WelcomeScreen.id,
routes: {
WelcomeScreen.id: (context) => WelcomeScreen(),
SignUpScreen.id: (context) => SignUpScreen(),
LoginScreen.id: (context) => LoginScreen(),
HomeScreen.id: (context) => HomeScreen(),
SearchScreen.id: (context) => SearchScreen(),
MessagesScreen.id: (context) => MessagesScreen(),
ProfileScreen.id: (context) => ProfileScreen(),
RegistraionScreen.id: (context) => RegistraionScreen(),
},
);
}
}
welcome_screen.dart
class WelcomeScreen extends StatefulWidget {
static String id = 'welcome_screen';
#override
_WelcomeScreenState createState() => _WelcomeScreenState();
}
class _WelcomeScreenState extends State<WelcomeScreen> {
#override
Widget build(BuildContext context) {
return Scaffold(
body: Expanded(
child: Text(
'Welcome',
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 40,
color: Colors.white,
),
),
),
);
}
}
I have tried restarting my app restarting my IDE, simulator, and computer to no avail and all the other questions with the same error had something wrong with their flutter however when I run flutter doctor I get no errors
Sorry if it's something small and stupid I'm not seeing I'm new to dart and flutter. Thanks for your help.

Answer 1

I tried removing the Expanded widget in the welcome screen and this solved the issue