Why is GetComponent() causing a null exception

Question

Hello! This line in my code

 GetComponent<EditorGUI>().bMouseOverGUI = false;

and every other GetComponent() call I do causisi this runtime error : NullReferenceException: Object reference not set to an instance of an object.

Does anyone know why this happens? Thanks.

Answer 1

Best Answer

Answer by randomuser · Apr 03, 2013 at 11:38 PM

The problem was that I was calling the script during Start(). Thanks!

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Answer 2

Answer by Eric5h5 · Dec 03, 2012 at 04:25 AM

Do you actually have a script called EditorGUI? If so, you shouldn't call it that, since it's the name of one of Unity's classes.

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Kryptos · Dec 03, 2012 at 01:15 PM 0

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And it won't work at runtime since this particular class is inside the UnityEditor assembly.

randomuser · Dec 03, 2012 at 02:57 PM 0

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Yes, I do have a class called EditorGUI, but the problem persists with another class as well which I tried.

randomuser · Dec 03, 2012 at 02:58 PM 0

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unless LevalManager is also a unity system class

Kryptos · Dec 03, 2012 at 04:03 PM 0

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Did you make sure that your object does have this component? It could be on another object or on a child object.

MibZ · Dec 03, 2012 at 04:14 PM 0

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Are you sure that bMouseOverGUI is a public bool?

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