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Question by Elkurion · Apr 14, 2015 at 11:08 PM · servernetwork.instantiatenullreference

nullreference with getcomponent

Hi! as i'm trying to understand how networking works I followed few tutos for making an authoritative server and I managed to make client connect and spawn their characters.

But I get a "NullReferenceException: Object reference not set to an instance of an object" when

playerScripts.Add (myNewTrans.GetComponent ());

this is on server side

 public void SpawnNewPlayer(NetworkPlayer newPlayer)
     {
         Debug.Log("coucou");
         int playerNumber = int.Parse (newPlayer + "");
         Debug.Log(int.Parse(newPlayer + ""));
 
         GameObject myNewTrans = Network.Instantiate(Player, Startpos, transform.rotation, playerNumber) as GameObject;
         

         playerScripts.Add (myNewTrans.GetComponent<PlayerController> ());
         
         NetworkView newObjectsNetworkview = myNewTrans.GetComponent<NetworkView>();
         
         newObjectsNetworkview.RPC ("SetPlayer", RPCMode.AllBuffered, newPlayer);
 
     }

since I feel kinda like a noob, I was hoping someone could explain me what's going wrong.

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avatar image spiceboy9994 · Apr 15, 2015 at 03:40 PM 0
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Where did you define playerScripts variable?

avatar image Elkurion · Apr 15, 2015 at 04:44 PM 0
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On top of the class

  public ArrayList playerScripts = new ArrayList ();

With debug I was able to find that this is myNewTrans thas is null, but I still don't know why.

avatar image spiceboy9994 · Apr 15, 2015 at 04:50 PM 0
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Are you sure the result of that function is a GameObject?... according to this, that function returns an Object, not a GameObject:

http://docs.unity3d.com/ScriptReference/Network.Instantiate.html

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Answer by Elkurion · Apr 15, 2015 at 05:09 PM

I found it! Thank you.

so:

  GameObject myNewTrans = Network.Instantiate(Player, Startpos, transform.rotation, playerNumber) as GameObject;

should be:

  Transform myNewTrans = Network.Instantiate(Player, Startpos, transform.rotation, playerNumber) as Transform;


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