java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1854)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2230)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1931)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2230)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1931)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2230)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1931)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2230)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1931)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2230)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1931)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2230)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2071)
at android.view.View.dispatchPointerEvent(View.java:7995)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4046)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3861)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3419)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3469)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3438)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3545)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3446)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3602)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3419)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3469)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3438)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3446)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3419)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5694)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5674)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5645)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5774)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.os.MessageQueue.nativePollOnce(MessageQueue.java)
at android.os.MessageQueue.next(MessageQueue.java:138)
at android.os.Looper.loop(Looper.java:131)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at dalvik.system.NativeStart.main(NativeStart.java)

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