Text Widget Error after update dart 2.5.0:- Failed assertion: line 269 pos 10: 'data != null' for text.dart package

[Tawfeekamr]

Steps to Reproduce

Link to the Main code:

main.dart I'm working in windows10...

1. After upgrade flutter and Dart to 2.5.0, I get an error that tells me text.dart has a problem.
2. I didn't import text.dart! it's come from Flutter widgets.
3. the screenshot

Target Platform: Anroid Target OS version/browser: Android 9 **Devices: Nexus 6

Logs

[ +55 ms] I/flutter ( 7881): #390 _runMainZoned.. (dart:ui/hooks.dart:229:25) [ +2 ms] I/flutter ( 7881): #395 _runMainZoned. (dart:ui/hooks.dart:221:5) [ +1 ms] I/flutter ( 7881): #396 _startIsolate. (dart:isolate-patch/isolate_patch.dart:305:19) [ +1 ms] I/flutter ( 7881): #397 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:172:12) [ +2 ms] I/flutter ( 7881): (elided 6 frames from class _AssertionError and package dart:async)

[√] Flutter (Channel stable, v1.9.1+hotfix.6, on Microsoft Windows [Version 10.0.18362.418], locale en-US) • Flutter version 1.9.1+hotfix.6 at C:\flutter • Framework revision 68587a0916 (6 weeks ago), 2019-09-13 19:46:58 -0700 • Engine revision b863200c37 • Dart version 2.5.0

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2) • Android SDK at C:\Users\totos\AppData\Local\Android\sdk • Android NDK location not configured (optional; useful for native profiling support) • Platform android-29, build-tools 29.0.2 • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03) • All Android licenses accepted.

[√] Android Studio (version 3.5) • Android Studio at C:\Program Files\Android\Android Studio • Flutter plugin version 40.2.2 • Dart plugin version 191.8593 • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)

[!] VS Code (version 1.39.1) • VS Code at C:\Users\totos\AppData\Local\Programs\Microsoft VS Code X Flutter extension not installed; install from https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[√] Connected device (1 available) • Android SDK built for x86 • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

[Tawfeekamr]

I fixed the issue using this solution.

[ParsaRbn]

having same issue with iOS simulator

[fvaladares]

Hello,

I thought that Dart is null safe now, so you can't assign null to a variable.

Take a look at line 360, as said in the console error message, the data variable can't be null.

Regards.

Fabrício G. Valadares Lattes: http://lattes.cnpq.br/1002632563427298 Mobile: +55 31 9 9357-6193 Linkedin:http://br.linkedin.com/pub/fabricio-valadares/45/586/5a1/ mail: fabricio.valadares@gmail.com

Os homens conseguiriam muito mais coisas se julgassem menos coisas impossíveis.

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On Fri, 28 Aug 2020 at 17:37, ParsaRbn notifications@github.com wrote:

having same issue with iOS simulator

[image: Screen Shot 2020-08-29 at 1 05 17 AM] https://user-images.githubusercontent.com/70341935/91612966-cbfc5f00-e993-11ea-9dc1-d12e33ddc428.png

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