Q:

Obfuscation using Proguard makes my application not work

I used Proguard to obfuscate the source code. After obfuscating, the application is not working. Any specific reasons? Has anyone faced this kind of problem? 

A:

You can exclude specific code/packages from obfuscation till you found the exact offensive code. Obvious culprits like Class.forName and using java.reflect can be sought in the source code.
Probably on the proguard site some more tips are given.

