I got this error after trying to integrate Airpush into my app. I've tried running it on a different API Level but still get the same error. 07-30 13:32:45.553: W/ZZ(533): BT_activity_base:onCreate (BASE CLASS) 07-30 13:32:45.723: W/ZZ(533): WB_screen_menuImage:onCreate 07-30 13:32:45.723: D/AndroidRuntime(533): Shutting down VM 07-30 13:32:45.744: W/dalvikvm(533): threadid=1: thread exiting with uncaught exception (group=0x40014760) 07-30 13:32:45.848: E/AndroidRuntime(533): FATAL EXCEPTION: main 07-30 13:32:45.848: E/AndroidRuntime(533): java.lang.NoClassDefFoundError: com.ppkdem.ebxfim154472.Airpush 07-30 13:32:45.848: E/AndroidRuntime(533): at com.deliciousvegetarianrecipes.WB_screen_menuImage.onCreate(WB_screen_menuImage.java:114) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.app.Activity.performCreate(Activity.java:4397) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1779) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1831) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.app.ActivityThread.access$500(ActivityThread.java:122) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1024) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.os.Handler.dispatchMessage(Handler.java:99) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.os.Looper.loop(Looper.java:132) 07-30 13:32:45.848: E/AndroidRuntime(533): at android.app.ActivityThread.main(ActivityThread.java:4123) 07-30 13:32:45.848: E/AndroidRuntime(533): at java.lang.reflect.Method.invokeNative(Native Method) 07-30 13:32:45.848: E/AndroidRuntime(533): at java.lang.reflect.Method.invoke(Method.java:491) 07-30 13:32:45.848: E/AndroidRuntime(533): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841) 07-30 13:32:45.848: E/AndroidRuntime(533): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599) 07-30 13:32:45.848: E/AndroidRuntime(533): at dalvik.system.NativeStart.main(Native Method) 07-30 13:32:48.984: I/Process(533): Sending signal. PID: 533 SIG: 9 There seems to be something wrong with the "activity" but do not know what it is .. Thanks in advance! Jumadi

Have you added the airpush jar file to libraries? In the new Eclipse you have to tick against the jar file to include it in project after adding the jar i suppose.

Check out the line number 6 in the logcat output, it says- 07-30 13:32:45.848: E/AndroidRuntime(533): java.lang.NoClassDefFoundError: com.ppkdem.ebxfim154472.Airpush Either you have not put the jar file in the libs folder and build configured it (as @Rishav suggests) or you have not implemented the codes properly in your plugin file.

Problem solved! You guys are really cool.. Thanks so much :)

Nice to know the problem is solved. All the best.