java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBarDrawerToggle.onConfigurationChanged(android.content.res.Configuration)' on a null object reference

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Attempt to invoke virtual method 'void android.support.v7.app.ActionBarDrawerToggle.onConfigurationChanged(android.content.res.Configuration)' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBarDrawerToggle.onConfigurationChanged(android.content.res.Configuration)' on a null object reference
at com.thebluealliance.androidclient.fragments.NavigationDrawerFragment.onConfigurationChanged(NavigationDrawerFragment.java:379)
at android.support.v4.app.Fragment.performConfigurationChanged(Fragment.java:2032)
at android.support.v4.app.FragmentManagerImpl.dispatchConfigurationChanged(FragmentManager.java:2094)
at android.support.v4.app.FragmentController.dispatchConfigurationChanged(FragmentController.java:255)
at android.app.ActivityThread.performConfigurationChanged(ActivityThread.java:4666)
at android.app.ActivityThread.performConfigurationChangedForActivity(ActivityThread.java:4577)
at android.app.ActivityThread.handleActivityConfigurationChanged(ActivityThread.java:4784)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1597)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)

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