To be able to change the values set to `google_app_id` in the file `build.gradle.kts` of this module, you should enable the plugin `com.google.gms.google-services` again, copy the file `google-services.json` to the folder `/app/src/main`, build the project, and check the generated file `app/build/generated/res/google-services/<buildtype>/values/values.xml` to import the generated values into the `build.gradle.kts` files.