title: Getting INVALID_SENDER on one device while its working with another GCM android
body: <p>I am following <a href="http://www.androidhive.info/2012/10/android-push-notifications-using-google-cloud-messaging-gcm-php-and-mysql/">Android Push Notifications using Google Cloud Messaging (GCM)</a> to implement GCM with my application it was working fine on single device <code>(Galaxy S)</code> when i tried to test it with another device<code>( Galaxy Tab 7')</code> its generating error.</p>
  
  <blockquote>
    <p>handleRegistration: registrationId = null, error = INVALID_SENDER, unregistered = null</p>
  </blockquote>
  
  <p>here is the Log which i am getting</p>
  
  <pre><code>V/GCMRegistrar(5649): Registering app  my_maypackage of senders APA91bHvzZbO_nyYvaA_QRGDaV-wRAYKjt0qJSQmzPUi2unqG7j0OGuyhVY1A3zh-ZfnA0XT0ffgyKypVJ_5owLZvZBNGARpTBkBg9ED8gVVCDejaIpShghq_tXGhMnFQEufwdCL1ibm
  V/GCMRegistrar(5649): Setting registeredOnServer status as true until 2013-04-02 11:02:07.847
  
  V/GCMBroadcastReceiver(5649): onReceive: com.google.android.c2dm.intent.REGISTRATION
  V/GCMBroadcastReceiver(5649): GCM IntentService class: my_maypackage.GCMIntentService
  V/GCMBaseIntentService(5649): Acquiring wakelock
  V/GCMBaseIntentService(5649): Intent service name: GCMIntentService-980172650021-7
  
  D/GCMBaseIntentService(5649): handleRegistration: registrationId = null, error = INVALID_SENDER, unregistered = null
  D/GCMBaseIntentService(5649): Registration error: INVALID_SENDER
  I/GCMIntentService(5649): Received error: INVALID_SENDER
  V/GCMBaseIntentService(5649): Releasing wakelock
  </code></pre>
  
  <p>Note: both devices are configured with same gmail account.</p>