错误:未为类“FlatButton”定义方法“PlatformButton”
错误:未为类“FlatButton”定义方法“PlatformButton”
提问于 2022-09-15 20:45:10
我得到了这些错误，不知道如何修复它们。
../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart:269:14: Error: The method 'FlatButton' isn't defined for the class 'PlatformButton'.
- 'PlatformButton' is from 'package:flutter_platform_widgets/src/platform_button.dart' ('../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart').
Try correcting the name to the name of an existing method, or defining a method named 'FlatButton'.
return FlatButton(
^^^^^^^^^^
../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart:302:12: Error: The method 'RaisedButton' isn't defined for the class 'PlatformButton'.
- 'PlatformButton' is from 'package:flutter_platform_widgets/src/platform_button.dart' ('../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart').
Try correcting the name to the name of an existing method, or defining a method named 'RaisedButton'.
return RaisedButton(
^^^^^^^^^^^^
../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_platform_widgets-1.20.0/lib/src/platform_dialog_action.dart:171:14: Error: The method 'FlatButton' isn't defined for the class 'PlatformDialogAction'.
- 'PlatformDialogAction' is from 'package:flutter_platform_widgets/src/platform_dialog_action.dart' ('../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_platform_widgets-1.20.0/lib/src/platform_dialog_action.dart').
Try correcting the name to the name of an existing method, or defining a method named 'FlatButton'.
return FlatButton(
^^^^^^^^^^回答 4
Stack Overflow用户
发布于 2022-09-15 21:05:31
如果您使用的是最新版本的Flutter，则不推荐使用Flatbutton，而是使用TextButton。
Stack Overflow用户
发布于 2022-11-12 14:37:32
**Old Widget change to New Widget
FlatButton => TextButton
RaisedButton => ElevatedButton
OutlineButton => OutlinedButton**更多细节..。https://docs.flutter.dev/release/breaking-changes/buttons#context
Stack Overflow用户
发布于 2022-10-20 10:07:18
检查您在pubspec.yaml中添加的最后一个包并删除它，看看是否没有发生错误，那么错误是因为该包
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原文链接：
https://stackoverflow.com/questions/73737240
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