he current Dart SDK version is 2.9.2. | Because nakama requires SDK version >=2.12.0 <3.0.0, version solving failed.

[Allan-Nava]

I try to do flutter packages get

[obrunsmann]

@Allan-Nava Can you please share your full pubspec and the output of flutter doctor?

[Allan-Nava]

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 1.20.4, on macOS 11.2.2 20D80, locale en-IT)
⣾

[!] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[✓] Xcode - develop for iOS and macOS (Xcode 12.4)
[✓] Android Studio (version 4.0)
[✓] VS Code (version 1.56.2)
[!] Connected device
! No devices available

[obrunsmann]

Seems you need to run flutter upgrade to get the latest stable version. Flutter 2.x is already stable and you're using 1.20.4 which is from Nov/2020.

This package only supports Flutter ≥2.x

[Allan-Nava]

Seems you need to run flutter upgrade to get the latest stable version. Flutter 2.x is already stable and you're using 1.20.4 which is from Nov/2020.

This package only supports Flutter ≥2.x

Ok, thanks . Asap I try