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Attempt to read from field 'java.lang.Object android.util.Pair.second' on a null object reference
java.lang.NullPointerException: Attempt to read from field 'java.lang.Object android.util.Pair.second' on a null object reference	at com.alibaba.android.vlayout.DelegateAdapter.findAdapterByIndex(DelegateAdapter.java:492)	at com.alibaba.android.vlayout.DelegateAdapter.onCreateViewHolder(DelegateAdapter.java:122)	at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6321)	at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5509)	at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5394)	at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5390)	at com.alibaba.android.vlayout.ExposeLinearLayoutManagerEx$LayoutState.next(ExposeLinearLayoutManagerEx.java:1607)	at com.alibaba.android.vlayout.VirtualLayoutManager$LayoutStateWrapper.next(VirtualLayoutManager.java:978)	at com.alibaba.android.vlayout.layout.BaseLayoutHelper.nextView(BaseLayoutHelper.java:110)	at com.alibaba.android.vlayout.layout.LinearLayoutHelper.layoutViews(LinearLayoutHelper.java:87)	at com.alibaba.android.vlayout.layout.BaseLayoutHelper.doLayout(BaseLayoutHelper.java:273)	at com.alibaba.android.vlayout.VirtualLayoutManager.layoutChunk(VirtualLayoutManager.java:574)	at com.alibaba.android.vlayout.ExposeLinearLayoutManagerEx.fill(ExposeLinearLayoutManagerEx.java:1140)	at com.alibaba.android.vlayout.ExposeLinearLayoutManagerEx.onLayoutChildren(ExposeLinearLayoutManagerEx.java:358)	at com.alibaba.android.vlayout.VirtualLayoutManager.onLayoutChildren(VirtualLayoutManager.java:398)	at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3537)	at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3266)	at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3798)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1079)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)	at android.widget.FrameLayout.onLayout(FrameLayout.java:261)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)	at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)	at android.widget.FrameLayout.onLayout(FrameLayout.java:261)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)	at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)	at android.widget.FrameLayout.onLayout(FrameLayout.java:261)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)	at android.widget.FrameLayout.onLayout(FrameLayout.java:261)	at com.android.internal.policy.DecorView.onLayout(DecorView.java:727)	at android.view.View.layout(View.java:17637)	at android.view.ViewGroup.layout(ViewGroup.java:5575)	at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2346)	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2068)	at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)	at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6338)	at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874)	at android.view.Choreographer.doCallbacks(Choreographer.java:686)	at android.view.Choreographer.doFrame(Choreographer.java:621)	at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860)	at android.os.Handler.handleCallback(Handler.java:751)	at android.os.Handler.dispatchMessage(Handler.java:95)	at android.os.Looper.loop(Looper.java:154)	at android.app.ActivityThread.main(ActivityThread.java:6121)	at java.lang.reflect.Method.invoke(Native Method)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)