My Unity editor always have get a error !!!

I know it is null object error → NullReferenceException: Object reference not set to an instance of an object

but… what is it? → UnityEngine.GUIUtility.GetControlID (Int32 hint, FocusType focus, Rect position)

I open any project have get this error!

and I click the error and have a Object Selecter (Script), but I have not create this script.

Have anyone know what is it?

i have the same error dude… and i just uninstall it run CCleaner and reinstall it, works fine.