Java - ChangeCurrentByOneFromLongPressCommand - Stack Overflow

Using a couple android.widget.NumberPicker in my Android App view and I get the following message when I hold down on one of the numbers arrows:-

FATAL EXCEPTION: main 
java.lang.NullPointerException at android.widget.NumberPicker$ChangeCurrentByOneFromLongPressCommand.run(NumberPicker.java:2245)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5419)

Anyone got any ideas on how I can stop this problem?

Using a couple android.widget.NumberPicker in my Android App view and I get the following message when I hold down on one of the numbers arrows:-

FATAL EXCEPTION: main 
java.lang.NullPointerException at android.widget.NumberPicker$ChangeCurrentByOneFromLongPressCommand.run(NumberPicker.java:2245)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5419)

Anyone got any ideas on how I can stop this problem?

Source