title: Android Backup Manager only works on Local transport
body: <p>I've been trying to implement the backup on my app for more than a month, but no success till now.
  I had done every steps that Google docs inform:
  Registered on Google Service
  Changes on Manifest (allowBackup, backupAgent and backup.api_key (google service register) and so on...</p>
  
  <p>Manifest parts:</p>
  
  <pre><code>&lt;application
     android:allowBackup="true"
     android:backupAgent="my.package.MyBackupManagerClass"&gt;
  
  &lt;meta-data android:name="com.google.android.backup.api_key" 
     android:value="my-generated-key-by-google-service" /&gt;
  </code></pre>
  
  <p>In fact, the backup <strong>is working, but only using the Local transport</strong>, I had tested using bmgr backup/run/restore:</p>
  
  <pre><code>bmgr list transports
    * android/com.android.internal.backup.LocalTransport
      com.google.android.gms/.backup.BackupTransportService
  </code></pre>
  
  <p>But when trying to use the Google transport (cloud: <code>com.google.android.gms/.backup.BackupTransportService</code>) <strong>it does not works, not even call my <code>onCreate()</code> from <code>MyBackupAgentHelper</code>.</strong></p>
  
  <p>One point that I want to mention is that when I run:
  bmgr backup 
  bmgr run </p>
  
  <p>After run command, on the logcat shows a lot of "Now staging backup of " (also shows my apps package on this list) but it happens very fast and don't seems that the backup is being done in fact, after all, even my MyBackupHelper.onCreate() is not called:</p>
  
  <pre><code>02-12 21:13:28.889: D/BackupManagerService(547): Now staging backup of com.google.android.talk
  02-12 21:13:28.904: D/BackupManagerService(547): Now staging backup of com.google.android.dialer
  02-12 21:13:28.907: D/BackupManagerService(547): Now staging backup of com.android.providers.settings
  02-12 21:13:28.910: D/BackupManagerService(547): Now staging backup of com.sirma.mobile.bible.android
  02-12 21:13:28.914: D/BackupManagerService(547): Now staging backup of com.android.sharedstoragebackup
  02-12 21:13:28.919: D/BackupManagerService(547): Now staging backup of com.google.android.gm
  02-12 21:13:28.922: D/BackupManagerService(547): Now staging backup of com.android.providers.userdictionary
  02-12 21:13:28.926: D/BackupManagerService(547): Now staging backup of com.google.android.apps.genie.geniewidget
  02-12 21:13:28.963: I/GmsBackupTransport(1409): Next backup will happen in 86399923 millis.
  02-12 21:13:28.967: I/BackupManagerService(547): Backup pass finished.
  </code></pre>