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Question by Goliath520 · Dec 21, 2012 at 07:38 AM · instantiatenullreferenceexception

NullReferenceException?

So I am trying to do something and I assume I am making a very simple mistake. this code doesn't work:

 Rigidbody clone;
 CivMoveSpeed = (Random.Range(0,1) - 0.5f) * Random.Range(4,8) * 100f;
 clone = Instantiate(Civ, CivSpawn, transform.rotation) as Rigidbody;
 clone.velocity = transform.forward * CivMoveSpeed;

but this does:

 Rigidbody clone;
 CivMoveSpeed = (Random.Range(0,1) - 0.5f) * Random.Range(4,8) * 100f;
 clone = Instantiate(Civ, CivSpawn, transform.rotation) as Rigidbody;
 //clone.velocity = transform.forward * CivMoveSpeed;

I am not sure where the problem is. I have an almost identical code in another file that works fine. it is saying that the error is coming from commented out line of code. I also tried leaving just the transform and that didn't work so I tried an entirely new vector which didn't work either. Any ideas?

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Answer by Eric5h5 · Dec 21, 2012 at 07:44 AM

Presumably your "Civ" variable is not a Rigidbody, so "clone" is null. (By the way, your code would be more readable if you stick to the standard Unity convention of using lowercase for variables while keeping uppercase for methods and classes.)

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avatar image Goliath520 · Dec 21, 2012 at 07:54 AM 0
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You were correct. I declared Civ as a gameobject for some reason. I will be sure to keep the variable convention in $$anonymous$$d in the future.

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