Error with flutter 2.8.1

[tenSunFree]

The argument type 'RefreshConfiguration Function()' can't be assigned to the parameter type 'Widget Function(BuildContext, Widget?)'.

can try adding (BuildContext context, Widget? widget).

Note that your app won't be available to users running Android SDKs below 19.

can try adding minSdkVersion 19.

Your project requires a newer version of the Kotlin Gradle plugin.

can try adding ext.kotlin_version = '1.5.30'.

[Yusufihsangorgel]

Thank you