INVALID_SENDER error at GCM registration

Question

I am developing application where I want to implement push notification for that I am using GCM, I have registered my project on google console and using project ID as sende

Answer 1

Here is a working example for push notifications, hope this helps:

private String SENDER_ID = "xxxxxxx";
private GoogleCloudMessaging gcm;

//somewhere else
gcm = GoogleCloudMessaging.getInstance(context);
String msg = gcm.register(SENDER_ID);

I recently got some service not available errors here so I also implemented a Broadcastreciever to recieve the regestration token.

@Override
public void onReceive(Context context, Intent intent) {
    Bundle data = intent.getExtras();
    if (data!=null){
        String regId = data.getString("registration_id");
    }
}