如何解决 Flutter 中的“FwfhTextStyle”错误？

Question

由于此错误，我的应用程序未构建，并且我无法理解该错误。我尝试了“颤振升级”和“颤振获取”，但没有任何帮助。

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

Answer 1

当我升级到 Flutter 后，3.3.0我出现了这个错误

经过一番搜索后，我通过在项目中运行软件包升级来解决它

flutter pub upgrade 

然后

flutter clean 

flutter pub get

Answer 2

请升级依赖来尝试一下flutter pub upgrade fwfh_text_style

Answer 3

我认为这是关于final List<ui.FontVariation>? fontVariations;

无论它是在最后一个索引处定义的还是根本没有定义。

我会做类似的事情来防止错误。List<ui.FontVariation> fontVariations = [];