R.java Missing in Android Project in NetBeans

Question

I\'m doing this for a project in AP Computer Science.

Basics:
Mac OS X 10.5.8
NetBeans 7.0
Android SDK 3.0 (Level 11)

So I\'m

Answer 1

Just right-click on the project, select the "Update broken project" command, then "Build" is not gray no longer. Build it, OK!!

The right-click menu command