Android: Google Maps not displaying

Basically you are mixing deprecated Android API v1 with the new API v2.

The easiest way to migrate is to remove all v1 related code and start from scratch, following this link: https://developers.google.com/maps/documentation/android/start

This problem is usually related to the map API key used to sign manifest. Take a look at this post and this one which describe the same error you are experiencing. In both cases it is because the API key they used was created with the wrong keystore. You need to make sure you use your debug keystore when you create an API key in the Google API console if you are going to be testing from eclipse.