what does mean by error code "notRegistered" when sending push messages using GCM?

Question

I am trying to send push notification to the registered device through Java server by following code:

import java.io.IOException;
import java.util.ArrayList;

import com.google.android.gcm.server.Constants;
import com.google.android.gcm.server.Message;
import com.google.android.gcm.server.MulticastResult;
import com.google.android.gcm.server.Result;
import com.google.android.gcm.server.Sender;


public class Test {




    private void sendNotification()
    {
           try{
                 Sender sender = new Sender("AIzaSyD9GblH8c9qCBqDhLPKMca3dH8JsY4cgjg");
                 ArrayList<String> devicesList = new ArrayList<String>();
                 devicesList.add("APA91bEtN2c3FYSFPpW-KuNtkWT6B9NJUviKN0L0DCjviJ2BtMyhZLqsFSFKfsySI1s88I0u68xETjvpqhvepffRSgwoTmpRXAv0Fbr0gH8CLhHO5CJC-M8");
                 String data = "hi.......";
                 Message message = new Message.Builder()
                                    .collapseKey("1")
                                    .timeToLive(3)
                                    .delayWhileIdle(true)
                                    .addData("message",
                                            data)
                                    .build();
                MulticastResult result = sender.send(message, devicesList, 1);
                            sender.send(message, devicesList, 1);

                            System.out.println(result.toString());
                            if (result.getResults() != null) {
                                int canonicalRegId = result.getCanonicalIds();
                                if (canonicalRegId != 0) {
                               System.out.println("hi...");
                                }
                            } else {
                                int error = result.getFailure();
                                System.out.println(error);
                            }

            }
           catch(Exception e)
           {
               System.out.println(e);
           }
    }
    public static void main(String ar[])
    {
        new Test().sendNotification();


    }

}

and I am getting following error:

MulticastResult(multicast_id=7574342191790679138,total=1,success=0,failure=1,canonical_ids=0,results: [[ error-code=NotRegistered ]]

Similar question was posted earlier but i didn't find any satisfactory answer there.

Not Registered generally indicates that the token (device id) that you are using is not valid. You should discard it and generate another one. — Arthur Thompson

Haseeb Anser Haseeb Anser · Accepted Answer · 2015-12-16T09:27:06

The Registration Id for the device which you are providing in the devicesList is not registered with the gcm.You first need to register your device with the gcm to obtain a valid RegistrationId.After getting this RegId You will pass it to server then,only your server can push the notification through GCM.

what does mean by error code "notRegistered" when sending push messages using GCM?

1 Answers