Android : Setting the name of retry receiver class to com.mypackage.GCMBroadcastReceiver

Notification was working fine but suddenly It was not working. Got error like handleRegistration: registrationId = null, error = AUTHENTICATION_FAILED, unregistered = null So, I found solution And Implement it from below links.

http://dexxtr.com/post/28188228252/rename-or-change-package-of-gcmintentservice-class

GCMRegistrar getRegistrationId return empty ID

But still I got an Issue and got error like

      V/GCMRegistrar(24934): Setting the name of retry receiver class to com.mypackage.GCMBroadcastReceiver
      V/GCMBroadcastReceiver(24934): GCM IntentService class: com.mypackage.gcm.GCMIntentService
      V/GCMBaseIntentService(24934): Acquiring wakelock
      V/GCMBroadcastReceiver(24934): onReceive: com.google.android.c2dm.intent.REGISTRATION
      V/GCMBroadcastReceiver(24934): GCM IntentService class: com.mypackage.gcm.GCMIntentService
      V/GCMBaseIntentService(24934): Acquiring wakelock

And In Manifest file

         <receiver
         android:name="com.mypackage.GCMBroadcastReceiver"
        android:permission="com.google.android.c2dm.permission.SEND" >
        <intent-filter>

            <!-- Receives the actual messages. -->
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            <!-- Receives the registration id. -->
            <action android:name="com.google.android.c2dm.intent.REGISTRATION" />

            <category android:name="mypackage" />
        </intent-filter>
    </receiver>
    <service android:name="com.mypackage.GCMIntentService" />

Implemented Receiver class

public class GCMBroadcastReceiver extends com.google.android.gcm.GCMBroadcastReceiver{


@Override
protected String getGCMIntentServiceClassName(Context context) {
    // TODO Auto-generated method stub
    return "com.mypackage.gcm.GCMIntentService";
}

I want to know why It is happening suddenly? And Provide possible solutions on it.

I implemented all possible solutions from Stackoverflow but It is not working. Please let me knoe the error. Thanks in advance.