java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference

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Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference
at com.example.shashankdc.learn.Medals.Medals_Adapter.onBindViewHolder(Medals_Adapter.java:62)
at com.example.shashankdc.learn.Medals.Medals_Adapter.onBindViewHolder(Medals_Adapter.java:17)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:5138)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4433)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4326)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1955)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1364)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1327)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:556)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2713)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1076)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.support.design.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1009)
at android.support.design.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:719)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:984)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:732)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:573)
at android.widget.FrameLayout.onLayout(FrameLayout.java:508)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:573)
at android.widget.FrameLayout.onLayout(FrameLayout.java:508)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:573)
at android.widget.FrameLayout.onLayout(FrameLayout.java:508)
at android.view.View.layout(View.java:15695)
at android.view.ViewGroup.layout(ViewGroup.java:4981)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2186)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1920)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1106)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6018)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:792)
at android.view.Choreographer.doCallbacks(Choreographer.java:596)
at android.view.Choreographer.doFrame(Choreographer.java:557)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:778)
at android.os.Handler.handleCallback(Handler.java:739)

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