I\'ve been trying to create an application that uses Google Maps and upon getting an error for \"MapActivity\" I searched the web and found the solution was to make my build
I faced the same problem.
Restarting the Eclipse & SDK manager solved the problem. After Restart, all the GOOGLE API and other stuff are visible under the respective Build.
If this dont show any change, Invoke the SDK Manager.exe as ADMINISTRATOR and this will solve the problem