Android Question Generating R file. Error

Something has been written about this. I studied them, but I could not solve the problem.

#AdditionalJar: com.google.android.gmslay-services-location

I updated the SDK and Play Services.

I updated the "google-play-services.jar".

B4A Version: 7.80
Parsing code. (0.02s)
Compiling code. (0.23s)
Compiling layouts code. (0.02s)
Organizing libraries. (0.00s)
Generating R file. Error