The lower bound of "sdk: '>=2.0.0-dev.68.0 <3.0.0'" must be 2.12.0 or higher to enable null safety.

[phpmac]

^C%
➜ juzi_flutter git:(main) ✗ flutter pub add install_plugin
The current Dart SDK version is 3.0.2.

Because orange depends on install_plugin any which doesn't support null safety, version solving failed.

The lower bound of "sdk: '>=2.0.0-dev.68.0 <3.0.0'" must be 2.12.0 or higher to enable null safety. For details, see https://dart.dev/null-safety

[MuhamadHaydar]

I faced the same issue, it does not support version 3.0.0 dart.

[Twechy]

Yeah, the same issue happened to me.

[edcedc]

Yeah, the same issue happened to me.