Unknown permission while developing with C2DM

Question

I\'m developing an Android app which will use C2DM to handle push notifications.

Now I\'m starting to test it, just the simple steps around registration of the device on

Answer 1

You need to set up your Manifest with the appropriate permissions as described here: http://code.google.com/android/c2dm/#manifest

Answer 2

I had initially configured the SDK to be used in the project to be Google APIs level 8, some way it was reconfigured to use only Android 2.2 SDK API level 8, so it was missing Google's native apps.