After upgrading my Flutter SDK to 2.2.0 the generated localization file is missing the 'intl' import which leads to the following error:
.dart_tool/flutter_gen/gen_l10n/translations_de.dart:54:11: Error: 'intl.DateFormat' can't be used as a type because 'intl' doesn't refer to an import prefix.
final intl.DateFormat dateDateFormat = intl.DateFormat.yMMMM(localeName);
^^^^^^^^^^^^^^^
Before upgrading to 2.2.0 (was 2.0.6):

After upgrading to 2.2.0:

Flutter doctor:
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel unknown, 2.2.0, on macOS 11.3.1 20E241 darwin-arm, locale de-DE)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 4.2)
[✓] VS Code (version 1.56.2)
[✓] Connected device (3 available)
After upgrading my Flutter SDK to 2.2.0 the generated localization file is missing the 'intl' import which leads to the following error:
Before upgrading to 2.2.0 (was 2.0.6):

After upgrading to 2.2.0:

Flutter doctor: