Type mismatches (AppBarTheme -> AppBarThemeData) in Flutter 3.35.1

[Guymaster]

Describe the bug
When building my application using flutter channel stable, it crashed.

.../AppData/Local/Pub/Cache/hosted/pub.dev/getwidget-6.0.0/lib/components/appbar/gf_appbar.dart:307:49: Error: A value of type 'AppBarThemeData' can't be assigned to a variable of type 'AppBarTheme'. - 'AppBarThemeData' is from 'package:flutter/src/material/app_bar_theme.dart' ('.../flutter/flutter/packages/flutter/lib/src/material/app_bar_theme.dart'). - 'AppBarTheme' is from 'package:flutter/src/material/app_bar_theme.dart' ('.../flutter/flutter/packages/flutter/lib/src/material/app_bar_theme.dart'). final AppBarTheme appBarTheme = AppBarTheme.of(context);

To Reproduce
Steps to reproduce the behavior:

1. Upgrade to flutter 3.35
2. Import GFAppBar somewhere
3. Try to build your app

Additional context

Flutter 3.35.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 20f8274939 (2 days ago) • 2025-08-14 10:53:09 -0700
Engine • hash 6cd51c08a88e7bbe848a762c20ad3ecb8b063c0e (revision 1e9a811bf8) (3
days ago) • 2025-08-13 23:35:25.000Z
Tools • Dart 3.9.0 • DevTools 2.48.0

Applied the following change in my pub cache (gf_appbar.dart) and it worked

final AppBarThemeData appBarTheme = AppBarTheme.of(context);

[Mamun-Lab]

same problem facing. any update?

[paramaw]

Also same problem

[w3ggy]

I made a temporary PR with fixes of the components which are used in my project until the official solution is deployed:

#371

[pietechsolution]

Ok team will check and merge

[JacoNeto]

I have the same issue

[peerapatinklao-sudo]

Describe the bug When building my application using flutter channel stable, it crashed.

.../AppData/Local/Pub/Cache/hosted/pub.dev/getwidget-6.0.0/lib/components/appbar/gf_appbar.dart:307:49: Error: A value of type 'AppBarThemeData' can't be assigned to a variable of type 'AppBarTheme'. - 'AppBarThemeData' is from 'package:flutter/src/material/app_bar_theme.dart' ('.../flutter/flutter/packages/flutter/lib/src/material/app_bar_theme.dart'). - 'AppBarTheme' is from 'package:flutter/src/material/app_bar_theme.dart' ('.../flutter/flutter/packages/flutter/lib/src/material/app_bar_theme.dart'). final AppBarTheme appBarTheme = AppBarTheme.of(context);

To Reproduce Steps to reproduce the behavior:

1. Upgrade to flutter 3.35
2. Import GFAppBar somewhere
3. Try to build your app

Additional context

Flutter 3.35.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 20f8274939 (2 days ago) • 2025-08-14 10:53:09 -0700
Engine • hash 6cd51c08a88e7bbe848a762c20ad3ecb8b063c0e (revision 1e9a811bf8) (3
days ago) • 2025-08-13 23:35:25.000Z
Tools • Dart 3.9.0 • DevTools 2.48.0

Applied the following change in my pub cache (gf_appbar.dart) and it worked

final AppBarThemeData appBarTheme = AppBarTheme.of(context);

[mabdullahjan]

yes exactly go to C:\Users*your pc name* \AppData\Local\Pub\Cache\hosted\pub.dev\getwidget-6.0.0\lib\components\appbar

open gf_appbar.dart file and find for final AppBarTheme appBarTheme = AppBarTheme.of(context); replace with final AppBarThemeData appBarTheme = AppBarTheme.of(context);

save
flutter clean
flutter pub get
flutter run