“Unable to get system library for project” after I upgraded to Android SDK 2.3 and ADT 8.0

Question

Today I upgraded to Android SDK 2.3 and I also upgraded the Eclipse Plugin Androi Developer Tools 8.0 (from 0.9.9). I also upgraded my Java Development Kit to 1.6_22.

No

Answer 1

I had this problem come out of nowhere.

What worked for me was to right-click the project, select Android Tools, Add support Library..

It is the android.jar that is missing, and this restores it.