I use proguard successfully but whenever I add external library (those that belongs to advertising) proguard fails with "can't find reference ...etc". I tried many combination such as libraryjars, injars ...etc but no luck.
Then I used the " -dontwarn " option on the external file and things worked magically. Is this bad to do? I mean is there a problem I am not seeing with handling external jars using this attribute?
Thank you