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java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams cannot be cast to android.support.v4.widget.DrawerLayout$LayoutParams	at android.support.v4.widget.DrawerLayout.isDrawerView(DrawerLayout.java:1415)	at android.support.v4.widget.DrawerLayout.isDrawerOpen(DrawerLayout.java:1677)	at acr.acr_app.MenuPrincipalActivity.onOptionsItemSelected(MenuPrincipalActivity.java:161)	at android.app.Activity.onMenuItemSelected(Activity.java:2925)	at android.support.v4.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:403)	at android.support.v7.app.AppCompatActivity.onMenuItemSelected(AppCompatActivity.java:189)	at android.support.v7.view.WindowCallbackWrapper.onMenuItemSelected(WindowCallbackWrapper.java:100)	at android.support.v7.widget.ToolbarWidgetWrapper$1.onClick(ToolbarWidgetWrapper.java:192)	at android.view.View.performClick(View.java:4832)	at android.view.View$PerformClick.run(View.java:19844)	at android.os.Handler.handleCallback(Handler.java:739)	at android.os.Handler.dispatchMessage(Handler.java:95)	at android.os.Looper.loop(Looper.java:135)	at android.app.ActivityThread.main(ActivityThread.java:5319)	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:1016)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:811)