After adding airpush library I got the error below. I am not doing any thing else just copy the jar file into libs folder in my project.
[2013-11-22 21:03:04 - Dex Loader] Unable to execute dex: Multiple dex files define packet/name /BuildConfig;
[2013-11-22 21:03:04 - NewPrincessColoringGame] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define packet/name /BuildConfig;