I have a problem with the flutter_platform_widgets package version, and while trying to upgrade it it does not work. Is there any other way to upgrade all the packages successfuly?
The error:
/C:/flutter_windows_3.0.5-stable/flutter/.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' ('/C:/flutter_windows_3.0.5-stable/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart').
package:flutter_platform_widgets/src/platform_button.dart:1
Try correcting the name to the name of an existing method, or defining a method named 'FlatButton'.
return FlatButton(
