title: V4/V13 support lib : Fragment work, ViewPager does not?
body: <p>Testing other components in android support library, </p>
  
  <p>On device classLoader can't find <code>ViewPager</code> however it can find other support components <code>FragmentActivity</code>, <code>Fragments</code> etc . ( using V4 as well as V13, gives same result)</p>
  
  <p>What's special with <code>ViewPager</code> ? Does it depends on another support components to work ? (Like <code>Fragment</code> needs <code>FragmentActivity</code>)</p>
  
  <p>NOTE: I think I'm properly exporting support library as dependency, else <code>Fragment</code> would also not have worked.</p>