Flutter SDK version X.X.X version solving failed.pub get failed Process finished with exit code 1

How do I solve this problem
The current Dart SDK version is 3.0.5.

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

The lower bound of "sdk: '>=2.1.0 <3.0.0'" must be 2.12.0 or higher to enable null safety.
For details, see

ecause superflow depends on webview_flutter ^2.9.0 which doesn't match any versions, version solving failed.
pub get failed
command: "C:\flutter\bin\cache\dart-sdk\bin\dart __deprecated_pub --directory . get --example"
pub env: {
"FLUTTER_ROOT": "C:\flutter",
"PUB_ENVIRONMENT": "flutter_cli:get",
"PUB_CACHE": "C:\Users\rashm\AppData\Local\Pub\Cache",
}
exit code: 1

Process finished with exit code 1

muje mere project me yahi same issues aa rge hai support kar sakhte ho kya plz