Error: A value of type 'List<int>' can't be returned from an async function with return type 'Future<Uint8List>'

[fischertayna]

../../../../../../.pub-cache/hosted/pub.dev/file_saver-0.2.12/lib/src/utils/helpers.dart:59:21: Error: A value of type 'List' can't be returned from an async function with return type 'Future'.

• 'List' is from 'dart:core'.
• 'Future' is from 'dart:async'.
• 'Uint8List' is from 'dart:typed_data'.
  return utf8.encode(response.data);

[tanthokg]

I encountered the same problem, and upgrading the SDK to 3.19 solves the problem for me. My flutter doctor before I upgrade:

[√] Flutter (Channel stable, 3.13.9, on Microsoft Windows [Version 10.0.19045.4291], locale en-US)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[√] Chrome - develop for the web
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.8.3)
[√] Android Studio (version 2023.3)
[√] VS Code (version 1.89.0)
[√] Connected device (4 available)
[√] Network resources

[incrediblezayed]

This is wierd, drop your flutter doctor output, I'll try to reproduce @fischertayna

[paraggupta9065]

i would like to work on this