I\'m just trying to have a look on Fragment and I got some probs with stupid stuff... There is my SkippersActivity.java :
public class SkippersActivity extends A
Another pitfall to watch out for is to make sure you don't forget to call super.onCreate() from your activity. If you make this dumb mistake like I did, you'll also see the "Error inflating class fragment" and "... cannot be cast to android.app.Fragment" errors, even if you haven't mismatched the standard and support.v4 versions of the classes.