android VerifyError -

android VerifyError -

i'm getting message when run application don't know why i'm getting 1 help me. here logcat.

java.lang.verifyerror: com.kosh.me.smaller @ java.lang.class.newinstanceimpl(native method) @ java.lang.class.newinstance(class.java:1429) @ android.app.instrumentation.newactivity(instrumentation.java:1021) @ android.app.activitythread.performlaunchactivity(activitythread.java:2577) @ android.app.activitythread.handlelaunchactivity(activitythread.java:2679) @ android.app.activitythread.access$2300(activitythread.java:125) @ android.app.activitythread$h.handlemessage(activitythread.java:2033) @ android.os.handler.dispatchmessage(handler.java:99) @ android.os.looper.loop(looper.java:123) @ android.app.activitythread.main(activitythread.java:4627) @ java.lang.reflect.method.invokenative(native method) @ java.lang.reflect.method.invoke(method.java:521) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:876) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:634) @ dalvik.system.nativestart.main(native method)

this happens when build library classes conflict @ run-time. seek performing clean of project followed build.

android