How to resolve 'FwfhTextStyle' error in Flutter?

Question

My app is not building because of this error and I am not able to understand the error. I tried 'flutter upgrade' and 'flutter get' but nothing was helpful.

Launching lib/main.dart on SM A127F in debug mode...
Running Gradle task 'assembleDebug'...
../../flutter/.pub-cache/hosted/pub.dartlang.org/fwfh_text_style-2.7.3+2/lib/fwfh_text_style.dart:11:7: Error: The non-abstract class 'FwfhTextStyle' is missing implementations for these members:
 - TextStyle.fontVariations
Try to either
 - provide an implementation,
 - inherit an implementation from a superclass or mixin,
 - mark the class as abstract, or
 - provide a 'noSuchMethod' implementation.

class FwfhTextStyle extends _TextStyleProxy {
      ^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/painting/text_style.dart:789:33: Context: 'TextStyle.fontVariations' is defined here.
  final List<ui.FontVariation>? fontVariations;
                                ^^^^^^^^^^^^^^ 


FAILURE: Build failed with an exception.

* Where:
Script '/home/vrs/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 1159

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command '/home/vrs/flutter/bin/flutter'' finished with non-zero exit value 1

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 16s
Exception: Gradle task assembleDebug failed with exit code 1

Ahmad Darwesh · Answer 1 · 2022-11-27T13:23:37.500

15

After I upgraded to Flutter 3.3.0 this error appearing to me

After some searching I resolved it by run upgrade for packages in my project

flutter pub upgrade

then

flutter clean 

flutter pub get

edited Nov 27 '22 at 13:23

answered Sep 07 '22 at 06:46

Ahmad Darwesh

553
4
12

1

This error was occurring because of a "Better Player". I removed it. – Vinayak Sutar Nov 25 '22 at 16:28

score 13 · Answer 2 · answered Oct 02 '22 at 15:12

13

Please try it out by upgrading the dependency flutter pub upgrade fwfh_text_style

answered Oct 02 '22 at 15:12

SHYAM

195
1
4

score 1 · Answer 3 · answered Jul 23 '22 at 06:58

1

I think this is about the definition of final List<ui.FontVariation>? fontVariations;

Whether it's defined at the last indexes or it's not defined at all.

I'd do something like that to prevent an error. List<ui.FontVariation> fontVariations = [];

answered Jul 23 '22 at 06:58

Aslan Demir

54
1
5

score 1 · Answer 4 · answered Oct 20 '22 at 02:29

1

Try to add fwfh_text_style this plugin in your project if not added. It works for me.

answered Oct 20 '22 at 02:29

Bhagwan Sawant

11
1

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – mohammad mobasher Oct 20 '22 at 06:29

score 0 · Answer 5 · answered Oct 13 '22 at 18:08

0

I tried flutter upgrade and then flutter clean but it didn't work for me.

I then run this command flutter pub outdated and it worked good.

answered Oct 13 '22 at 18:08

Shady Boshra

2,521
3
23
35

score 0 · Answer 6 · answered Mar 07 '23 at 22:17

0

I had to run rm -rf ~/.pub-cache and then flutter pub get ‍♂️

answered Mar 07 '23 at 22:17

David Chopin

2,780
2
19
40

How to resolve 'FwfhTextStyle' error in Flutter?

6 Answers6