packages/apps/Music2/src/com/android/music/MusicViewPager.java:20: package android.support.v4.view does not exist
import android.support.v4.view.ViewPager;
                              ^
packages/apps/Music2/src/com/android/music/MusicViewPager.java:23: cannot find symbol
symbol: class ViewPager
public class MusicViewPager extends ViewPager {
                                    ^