java.lang.NullPointerException

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  • java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.bringToFront()' on a null object reference at com.telerik.android.primitives.widget.sidedrawer.transitions.DrawerTransitionBase.setProgress(DrawerTransitionBase.java:77) at com.telerik.android.primitives.widget.sidedrawer.transitions.DrawerTransitionBase.onEnded(DrawerTransitionBase.java:226) at com.telerik.android.primitives.widget.sidedrawer.transitions.DrawerTransitionBase.run(DrawerTransitionBase.java:221) at android.view.ViewPropertyAnimator$AnimatorEventListener.onAnimationEnd(ViewPropertyAnimator.java:1119) at android.animation.ValueAnimator.endAnimation(ValueAnimator.java:1239) at android.animation.ValueAnimator$AnimationHandler.doAnimationFrame(ValueAnimator.java:766) at android.animation.ValueAnimator$AnimationHandler$1.run(ValueAnimator.java:801) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:920) at android.view.Choreographer.doCallbacks(Choreographer.java:695) at android.view.Choreographer.doFrame(Choreographer.java:628) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:906) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7229) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
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