title: Android Built-In Animations on Emulator with 4.0
body: <p>My app has been working on a 4.0 emulator when targeted for V11 and built with the support library Fragment classes to work from V7 and up. But now that I am targeting V14 (also min SDK), I am getting the following fatal error on fragment transition animations:</p>
  
  <pre><code>E/AndroidRuntime(1098): FATAL EXCEPTION: main
  E/AndroidRuntime(1098): java.lang.RuntimeException: Unknown animator name: alpha
  E/AndroidRuntime(1098):     at android.animation.AnimatorInflater.createAnimatorFromXml(AnimatorInflater.java:129)
  E/AndroidRuntime(1098):     at android.animation.AnimatorInflater.createAnimatorFromXml(AnimatorInflater.java:93)
  </code></pre>
  
  <p>This is the code that specifies the fragment transaction:</p>
  
  <pre><code>FragmentTransaction ft = mFrag.getFragmentManager().beginTransaction();
  ft.setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out,
          android.R.anim.fade_in, android.R.anim.fade_out);
  ft.replace(mParentId, frag);
  ft.addToBackStack(null);
  ft.commit();
  </code></pre>
  
  <p>Has something changed that these animations would no longer be found? Does it have something to do with not using the support library?</p>