Unity nulling variables for instantiated GameObject?

Questions & Answers
1

Unity appears to be clearing the variable for an instantiated GameObject as it’s created, for no reason I can figure out.

I’ve basically just got a simple:

GameObject newObj = Instantiate(theObj, thePos, rotation) as GameObject;
otherVar = newObj.GetComponent<script >();

But I’m getting a NullReferenceException for newObj – running a Debug.Log on it shows me that it’s null, even though the gameobject was created.

This is really driving me insane, because this exact code worked for 2 weeks and now it’s suddenly breaking. I’ve also tried declaring the variable up top and then using it, but no dice. What’s going on??

2

Are you sure that “theObj” is of type “GameObject”? If it’s something else the as-cast will return null when the returned type can’t be casted into a GameObject.

If you don’t explicitly want to get null if the cast fails you should use a normal cast:

GameObject newObj = (GameObject)Instantiate(theObj, thePos, rotation);

In this case the runtime will throw an excetion if the cast fails. You should always use this cast since it makes it easier to spot the error.