I am having a little trouble with the complier,
Same code I use on Nexus 5, no error.
as Soon as I use it in Tablet, it crash right away and the error said
I believe you should try turning multiDexEnabled false and get rid of the compile 'com.google.android.gms:play-services-gcm:8.4.0' . You have two play-services which forces you to turn multiDexEnabled to true