build.gradle:
compile 'com.google.android.gms:play-services-base:7.5.0'
compile 'com.google.android.gms:play-services-ads:7.5.0'
That works for us.
Cheers
Ralf
compile 'com.google.android.gms:play-services-ads:8.4.0'
compile 'com.google.android.gms:play-services-base:8.4.0'
AdvertisingIdClient.Info idInfo = null;
try {
idInfo = AdvertisingIdClient.getAdvertisingIdInfo(applicationContext);
instance.config.set(Config.Text.ADVERTISING_ID, idInfo.getId());
} catch (Exception e) {
e.printStackTrace();
}