java.lang.IllegalArgumentException：pointerIndex out of range

[hdiot]

5907-08 19:15:57.198 490 490 E MotionEvent-JNI: An exception occurred: pointerCount 1, pointerIndex -1.

6007-08 19:15:57.206 490 490 E InputEventReceiver: Exception dispatching input event.
6107-08 19:15:57.207 490 490 E MessageQueue-JNI: Exception in MessageQueue callback: handleReceiveCallback
6207-08 19:15:57.213 490 490 E MessageQueue-JNI: java.lang.IllegalArgumentException: pointerIndex out of range
6307-08 19:15:57.213 490 490 E MessageQueue-JNI: at android.view.MotionEvent.nativeGetAxisValue(Native Method)
6407-08 19:15:57.213 490 490 E MessageQueue-JNI: at android.view.MotionEvent.getX(MotionEvent.java:2381)
6507-08 19:15:57.213 490 490 E MessageQueue-JNI: at android.support.v4.view.ViewPager.onInterceptTouchEvent(ViewPager.java:2066)
6607-08 19:15:57.213 490 490 E MessageQueue-JNI: at com.ldf.calendar.view.MonthPager.onInterceptTouchEvent(MonthPager.java:100)