Cann't use it on Dart 2.5.0

[Wassmd]

Running "flutter pub get" in smart_parking_flutter... The current Dart SDK version is 2.5.0.

Because smart_parking_flutter depends on flutter_oauth any which requires SDK version >=1.8.0 <2.0.0, version solving failed.
pub get failed (1)
Process finished with exit code 1

[Xigtim]

Same problem over here as well.