Fatal Exception: java.lang.NullPointerException:

[burhanaksendir]

Sometimes get this error:

Fatal Exception: java.lang.NullPointerException: Attempt to read from field 'float android.graphics.RectF.left' on a null object reference
at android.graphics.Canvas.drawArc(Canvas.java:1209)
at com.tomergoldst.progress_circle.ProgressCircle.onDraw(ProgressCircle.java:236)
at android.view.View.draw(View.java:15239)
at android.view.View.updateDisplayListIfDirty(View.java:14175)
at android.view.View.getDisplayList(View.java:14197)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3390)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3369)
at android.view.View.updateDisplayListIfDirty(View.java:14135)
at android.view.View.getDisplayList(View.java:14197)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3390)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3369)
at android.view.View.updateDisplayListIfDirty(View.java:14135)
at android.view.View.getDisplayList(View.java:14197)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3390)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3369)
at android.view.View.updateDisplayListIfDirty(View.java:14135)
at android.view.View.getDisplayList(View.java:14197)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3390)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3369)
at android.view.View.updateDisplayListIfDirty(View.java:14135)
at android.view.View.getDisplayList(View.java:14197)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3390)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3369)
at android.view.View.updateDisplayListIfDirty(View.java:14135)
at android.view.View.getDisplayList(View.java:14197)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3390)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3369)
at android.view.View.updateDisplayListIfDirty(View.java:14135)
at android.view.View.getDisplayList(View.java:14197)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:273)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:279)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:318)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:2548)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2364)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1994)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1073)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5903)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:773)
at android.view.Choreographer.doCallbacks(Choreographer.java:586)
at android.view.Choreographer.doFrame(Choreographer.java:556)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:759)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697)