Since a couple of weeks, I\'m seeing more and more crashes of my app with the following exception
Fatal Exception: java.lang.NoClassDefFoundError android.os.AsyncTas
It looks like yet another Google Play Services bug...
https://groups.google.com/forum/#!topic/google-admob-ads-sdk/_x12qmjWI7M
Edit: confirmed by Google staff => https://groups.google.com/d/msg/google-admob-ads-sdk/_x12qmjWI7M/9ZQs-v0ZZTMJ