apk fails on start after proguard

Question

Im using the most recent Android Studio updated today.....and also using proguard 4.9 My app runs perfectly from the studio to emulator.... but when i use proguard the app doesn't even start. I export the apk and separately install on phone or emulator, it still fails to start. I managed to get logging from the "proguarded" apk. I use 2 external jars..... admob 6.4.1 and Google analytics V2, both are saved within the libs folder and referenced in the project set up. and run perfectly without proguard. I appended this to my proguard.properties.txt

-libraryjars C:\Users\Paul\workspace\Xtreme Converter\libs\libGoogleAnalyticsV2.jar
-libraryjars C:\Users\Paul\workspace\Xtreme Converter\libs\GoogleAdMobAdsSdk-6.4.1.jar

but i get this logging

06-27 17:05:58.163    2194-2194/com.paul.xcon                  W/dalvikvm: threadid=1:           thread exiting with uncaught exception (group=0xb4ca6908)
06-27 17:05:58.163    2194-2194/com.paul.xcon                  E/AndroidRuntime: FATAL EXCEPTION: main
    java.lang.NoClassDefFoundError: com.google.analytics.tracking.android.EasyTracker
    at com.paul.xcon.ConvSel.onStart(Unknown Source)

ive tried very many variations of libjars even without the C:\ references still nothing,

Answer 1

Ok When i encountered the problem at first i thought adding

-libraryjars C:\Users\Paul\workspace\Xtreme Converter\libs\libGoogleAnalyticsV2.jar
-libraryjars C:\Users\Paul\workspace\Xtreme Converter\libs\GoogleAdMobAdsSdk-6.4.1.jar

would solve it..... it didn't but i left it there, I then updated my studio and also downloaded ad loaded the latest proguard into my SDK... It would have worked but these things i added above prevented it i think. Its now working fine after removing them.