I am trying to get GCM working in my app (to notify users when our hours change, or when we have any promos going on), but I keep getting the error Cannot
GCM
Cannot
If you are in Android Studio, make sure that in your build.gradle you have:
build.gradle
dependencies { compile 'com.google.android.gms:play-services:7.8.0' }
and then run build.
build
That worked for me.