im getting this now
Build file 'C:\Users\khotk\AppData\Local\Pub\Cache\hosted\pub.dev\geolocator_android-4.6.2\android\build.gradle' line: 29
* What went wrong:
A problem occurred evaluating project ':geolocator_android'.
> Could not get unknown property 'flutter' for extension 'android' of type com.android.build.gradle.LibraryExtension.
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
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2: Task failed with an exception.
-----------
* Where:
Script 'G:\flutter\packages\flutter_tools\gradle\src\main\groovy\flutter.groovy' line: 929
* What went wrong:
A problem occurred configuring project ':geolocator_android'.
> Failed to notify project evaluation listener.
> Cannot invoke method substring() on null object
> compileSdkVersion is not specified. Please add it to build.gradle
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
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* Get more help at https://help.gradle.org