The current Dart SDK version is 3.5.3.

Because booking_system_flutter depends on flutterwave_standard >=1.0.8 which requires SDK version >=2.12.0 .5.0, version solving failed.


You can try the following suggestion to make the pubspec resolve:
* Try using the Flutter SDK version: 3.22.3.

Codecanyon'dan indirdiğim uygulamayı start yapacaktım bu hatayı verdi. Terminal üzerinden de
''flutter pub upgrade flutterwave_standard'' yazdım ancak hata verdi.