مشکل NoClassDefFoundError

سلام من موقع اجرا برنامه مشکل NoClassDefFoundError دارم!!!!بدجور رو اعصابه!کسی راه حلی داره

 03-16 14:28:27.988: E/AndroidRuntime(15434): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<<
03-16 14:28:28.024: E/AndroidRuntime(15434): will FindClass com/android/internal/os/RuntimeInit
03-16 14:28:28.080: E/Trace(15443): error opening trace file: No such file or directory (2)
03-16 14:28:28.524: E/AndroidRuntime(15443): FATAL EXCEPTION: main
03-16 14:28:28.524: E/AndroidRuntime(15443): java.lang.NoClassDefFoundError: com.digitalaria.gama.util.Debugger
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at com.digitalaria.gama.slidingpanel.SlidingPanelPane.onLayout(SlidingPanelPane.java:335)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.View.layout(View.java:14008)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewGroup.layout(ViewGroup.java:4373)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.View.layout(View.java:14008)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewGroup.layout(ViewGroup.java:4373)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.View.layout(View.java:14008)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewGroup.layout(ViewGroup.java:4373)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.View.layout(View.java:14008)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewGroup.layout(ViewGroup.java:4373)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.View.layout(View.java:14008)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewGroup.layout(ViewGroup.java:4373)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.View.layout(View.java:14008)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewGroup.layout(ViewGroup.java:4373)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1892)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1711)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.Choreographer.doCallbacks(Choreographer.java:562)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.Choreographer.doFrame(Choreographer.java:532)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.os.Handler.handleCallback(Handler.java:725)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.os.Handler.dispatchMessage(Handler.java:92)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.os.Looper.loop(Looper.java:137)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at android.app.ActivityThread.main(ActivityThread.java:5041)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at java.lang.reflect.Method.invokeNative(Native Method)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at java.lang.reflect.Method.invoke(Method.java:511)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
03-16 14:28:28.524: E/AndroidRuntime(15443): 	at dalvik.system.NativeStart.main(Native Method)