java.lang.NullPointerException

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  • Nullpointer on ItemAdapter
    via GitHub by Jacobh2
    ,
    • java.lang.NullPointerException: Attempt to invoke virtual method 'int com.woxthebox.draglistview.DragItemAdapter.getPositionForItemId(long)' on a null object reference at com.woxthebox.draglistview.DragItemRecyclerView.onDragStarted(DragItemRecyclerView.java:258) at com.woxthebox.draglistview.DragListView$2.onDragStarted(DragListView.java:146) at com.woxthebox.draglistview.DragItemAdapter$ViewHolder$1.onLongClick(DragItemAdapter.java:121) at android.view.View.performLongClick(View.java:5236) at android.view.View$CheckForLongPress.run(View.java:20900) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:145) at android.app.ActivityThread.main(ActivityThread.java:5951) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
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