Since I updated the Play Services in my app to 8.4.0:
compile 'com.google.android.gms:play-services:8.4.0'
I get the following message in the debugger:
GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services. Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
According to this answer I can either create JSON file and add it to my project or add
<string name="google_app_id">YOUR_PROJECT_NUMBER</string>
to the values resource file.
My problem is though that I have multiple Google API projects created for my app- one for Maps, another for GCM, and a third for in-app purchases.
Which project number should I use to set the google_app_id with? Can I specify multiple "google_app_id"s?