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android.support.v7.widget.RecyclerView$SavedState
java.lang.NoClassDefFoundError: android.support.v7.widget.RecyclerView$SavedState at android.support.v7.widget.RecyclerView.onSaveInstanceState(RecyclerView.java:1078) at android.view.View.dispatchSaveInstanceState(View.java:14641) at android.view.ViewGroup.dispatchFreezeSelfOnly(ViewGroup.java:3175) at android.support.v7.widget.RecyclerView.dispatchSaveInstanceState(RecyclerView.java:1109) at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:3161) at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:3161) at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:3161) at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:3161) at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:3161) at android.view.View.saveHierarchyState(View.java:14624) at com.android.internal.policy.impl.PhoneWindow.saveHierarchyState(PhoneWindow.java:2126) at android.app.Activity.onSaveInstanceState(Activity.java:1456) at android.support.v4.app.FragmentActivity.onSaveInstanceState(FragmentActivity.java:564) at android.support.v7.app.AppCompatActivity.onSaveInstanceState(AppCompatActivity.java:502) at android.app.Activity.performSaveInstanceState(Activity.java:1383) at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1286) at android.app.ActivityThread.callCallActivityOnSaveInstanceState(ActivityThread.java:4473) at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3845) at android.app.ActivityThread.handleStopActivity(ActivityThread.java:3908) at android.app.ActivityThread.access$1200(ActivityThread.java:177) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:145) at android.app.ActivityThread.main(ActivityThread.java:5942) 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:1399) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)