title: Activity has leaked IntentReceiver that was originally registered here. Are you missing a call to unregisterReceiver()?
body: <pre><code>01-16 16:52:42.211: E/ActivityThread(2529): Activity com.Civilcourage.CivilcurageSplash has leaked IntentReceiver com.google.android.gcm.GCMBroadcastReceiver@405282e0 that was originally registered here. 
  
  Are you missing a call to unregisterReceiver()?
  </code></pre>
  
  <p>What is the cause of the above error? 
  How can it be avoided?                            </p>