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java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference	at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:399)	at android.widget.ArrayAdapter.getView(ArrayAdapter.java:369)	at android.widget.AbsListView.obtainView(AbsListView.java:2346)	at android.widget.ListView.makeAndAddView(ListView.java:1876)	at android.widget.ListView.fillDown(ListView.java:702)	at android.widget.ListView.fillFromTop(ListView.java:763)	at android.widget.ListView.layoutChildren(ListView.java:1685)	at android.widget.AbsListView.onLayout(AbsListView.java:2148)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1743)	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1586)	at android.widget.LinearLayout.onLayout(LinearLayout.java:1495)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)	at android.widget.FrameLayout.onLayout(FrameLayout.java:273)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1221)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)	at android.widget.FrameLayout.onLayout(FrameLayout.java:273)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1743)	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1586)	at android.widget.LinearLayout.onLayout(LinearLayout.java:1495)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)	at android.widget.FrameLayout.onLayout(FrameLayout.java:273)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1743)	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1586)	at android.widget.LinearLayout.onLayout(LinearLayout.java:1495)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)	at android.widget.FrameLayout.onLayout(FrameLayout.java:273)	at com.android.internal.policy.PhoneWindow$DecorView.onLayout(PhoneWindow.java:2733)	at android.view.View.layout(View.java:16668)	at android.view.ViewGroup.layout(ViewGroup.java:5443)	at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2171)	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1931)	at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)	at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6042)	at android.view.Choreographer$CallbackRecord.run(Choreographer.java:876)	at android.view.Choreographer.doCallbacks(Choreographer.java:688)	at android.view.Choreographer.doFrame(Choreographer.java:624)	at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:862)	at android.os.Handler.handleCallback(Handler.java:739)	at android.os.Handler.dispatchMessage(Handler.java:95)	at android.os.Looper.loop(Looper.java:148)	at android.app.ActivityThread.main(ActivityThread.java:5468)	at java.lang.reflect.Method.invoke(Native Method)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)