NetworkServer.SpawnWithClientAuthority Not found

I am trying to run this code.

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using UnityEngine.Networking;
6.  
7.  
8. public class PlayerInput : NetworkBehaviour {
9. [Command]
10.   void CmdSpawnThirdCamera()
11.   {
12.     var camSpawn = (Third_Camera)Instantiate(third_Camera);
13.  
14.     NetworkServer.SpawnWithClientAuthority(camSpawn, connectionToClient);
15.   }
16. }
17.    

But i get this message from unity ? any ideas

`NetworkServer' does not contain a definition for `SpawnWithClientAuthority'

 

Fixed it.. i was overriding the NetworkServer with my own script.