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Question by RetnuhStudio · Jun 18, 2013 at 04:40 AM · instantiategetcomponentrpc

Null Reference Exception on instantiated objects script.

I am instantiating an object over a Network using an RPC. The object instantiates fine but if I try accessing the script when it is instantiated I get a null reference exception on the client and server.

This is the RPC.

 // Instantiate a Arrow projectile across the network.
     [RPC]
     void SpawnProjectileArrow(Vector3 position, Quaternion rotation) {
 
         GameObject arrow = Instantiate(projectileArrowPrefab, position, rotation) as GameObject;
         arrowProjectileScript aScript = arrow.GetComponent<arrowProjectileScript>();
         
     }

The "arrowProjectileScript" is attached to the projectileArrowPrefab.

Any Ideas on what is causing this?

Thanks - Matt

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avatar image moha · Jun 18, 2013 at 07:31 AM 0
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at runtime check the instantiate object. if the script isn't here the null exception is normal.

avatar image RetnuhStudio · Jun 18, 2013 at 08:52 AM 0
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The script is still on the object at runtime.

avatar image whydoidoit · Jun 18, 2013 at 01:25 PM 1
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How is projectileArrowPrefab declared?

avatar image RetnuhStudio · Jun 19, 2013 at 01:19 AM 0
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 public Transfrom arrowProjectileScript;

It is assigned to the script calling the RPC by a public transform. But the prefab instantiates fine. I just cant access its script.

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Answer by RetnuhStudio · Jun 19, 2013 at 04:53 AM

Dam, found it. Needed to be a public GameObject not a Transform. Whoops.

 public GameObject arrowProjectileScript;

Thanks for the help guys.

Regards - Matt

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