Flutter 'owner!._debugCurrentBuildTarget == this': is not true. #87
14,267
Solution 1
I had the same issue and the problem was I had called the class inside the same class. See the body: below. Replacing it with another widget fixed the issue.
class DicePage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
backgroundColor: Colors.red,
appBar: AppBar(
title: Text('Dicee'),
backgroundColor: Colors.red,
),
body: DicePage(),
),
);
}
}
Solution 2
I just had a similiar error:
════════ Exception caught by widgets library ═══════════════════════════════════
The following StackOverflowError was thrown building Container:
Stack Overflow
The relevant error-causing widget was
Container
lib/widgets/profile_wiget.dart:9
When the exception was thrown, this was the stack
#0 new _HashMap (dart:collection-patch/collection_patch.dart)
#1 new HashMap (dart:collection-patch/collection_patch.dart:33:22)
#2 RegExp._cache (dart:core-patch/regexp_patch.dart:109:11)
#3 RegExp._cache (dart:core-patch/regexp_patch.dart)
#4 new RegExp (dart:core-patch/regexp_patch.dart:17:31)
...
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by widgets library ═══════════════════════════════════
'package:flutter/src/widgets/framework.dart': Failed assertion: line 4371 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
The relevant error-causing widget was
ProfileWidget
lib/widgets/profile_wiget.dart:10
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by widgets library ═══════════════════════════════════
'package:flutter/src/widgets/framework.dart': Failed assertion: line 4371 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
The relevant error-causing widget was
Container
lib/widgets/profile_wiget.dart:9
════════════════════════════════════════════════════════════════════════════════
It might be another reason since I got a stackoverflow, but my answer will hopefully help others who search this error message.
My problem was that I made a widget returning an instance of itself (I named two classes the same):
class ProfileWidget extends StatelessWidget {
final Profile profile = Profile(name: 'Someone');
@override
Widget build(BuildContext context) {
return Container(
child: (profile.isAnon) ? AnonProfileWidget() : ProfileWidget(),
);
}
}
I solved it by simply renaming one class.
Author by
Bharat Chhabra
Updated on December 24, 2022Comments
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Bharat Chhabra over 1 year
I am getting the error when I try to load the pdf from url. It shows the number of pages of pdf but then it crashes.
Using plugin - https://pub.dev/packages/advance_pdf_viewer
════════════════════════════════════════════════════════════════════════════════════════════════════ I/flutter (28488): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════ I/flutter (28488): The following assertion was thrown while rebuilding dirty elements: I/flutter (28488): 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4371 pos 14: I/flutter (28488): 'owner!._debugCurrentBuildTarget == this': is not true. I/flutter (28488): I/flutter (28488): Either the assertion indicates an error in the framework itself, or we should provide substantially I/flutter (28488): more information in this error message to help you determine and fix the underlying cause. I/flutter (28488): In either case, please report this assertion by filing a bug on GitHub: I/flutter (28488): https://github.com/flutter/flutter/issues/new?template=BUG.md I/flutter (28488): I/flutter (28488): The relevant error-causing widget was: I/flutter (28488): PDFViewer I/flutter (28488): lib/…/panSignatureScreens/pan_screen.dart:156 I/flutter (28488): I/flutter (28488): When the exception was thrown, this was the stack: I/flutter (28488): #2 Element.rebuild.<anonymous closure> package:flutter/…/widgets/framework.dart:4371 I/flutter (28488): #3 Element.rebuild package:flutter/…/widgets/framework.dart:4374 I/flutter (28488): #4 BuildOwner.buildScope package:flutter/…/widgets/framework.dart:2777 I/flutter (28488): #5 WidgetsBinding.drawFrame package:flutter/…/widgets/binding.dart:906 I/flutter (28488): #6 RendererBinding._handlePersistentFrameCallback package:flutter/…/rendering/binding.dart:309 I/flutter (28488): #7 SchedulerBinding._invokeFrameCallback package:flutter/…/scheduler/binding.dart:1117 I/flutter (28488): #8 SchedulerBinding.handleDrawFrame package:flutter/…/scheduler/binding.dart:1055 I/flutter (28488): #9 SchedulerBinding._handleDrawFrame package:flutter/…/scheduler/binding.dart:971 I/flutter (28488): #13 _invoke (dart:ui/hooks.dart:251:10)) I/flutter (28488): #14 _drawFrame (dart:ui/hooks.dart:209:3))
my usage - inside a Column(children:[])
new Expanded( child: Container( child: PDFViewer( document: document, ), decoration: BoxDecoration( border: Border.all(color: Colors.black), ), ), ),
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MU'men Ahmed over 2 yearsSaved me alot of time. Thanks :)
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Al Walid Ashik over 2 yearsexactly it happened with me too :D