Error : Neither User 10066 Nor Current Process Has Android.permission.BACKUP

I am developing an android application for which i was studying about Google Backup API , i read this tutorial http://www.edumobile.org/android/android-development/backup-manager/

Solution 1:

You are trying to use the BackupManager directly and you cannot do that without the android.permission.BACKUP permission. That permission is only granted to apps signed with the platform key (basically system apps).

You are requesting the permission in your manifest but if you watch the logs while you install you should see the "Not granting permission" warning for your app.

So in the end your code looks generally correct but you are just getting a security exception when trying to call the protected methods.