CS0115 ..."is marked as an override but no suitable method found to override" and general problem

I am pretty lost and try to do add a player with code with the following code:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using UnityEngine.Networking;
4.  
5. public class PlayerSpawner : NetworkBehaviour {
6.  
7.     public GameObject playerPrefab;
8.  
9.     public override void OnStartClient () {
10.         print ("OnStartClient");
11.  
12.         ClientScene.AddPlayer (playerPrefab);
13.  
14.     }
15.  
16.  
17.     public override void OnServerAddPlayer(NetworkConnection conn, short playerControllerId, NetworkReader extraMessageReader)
18.     {
19.         print ("OnServerAddPlayer");
20.         OnServerAddPlayer(conn, playerControllerId, extraMessageReader);
21.     }
22.  
23. }

1) I get the following error i do not understand how to solve:

2) Read the documentation etc. and tried a lot of things but need help to be able to spawn a player via code. Just can't get it to work, guess i do not understand fully.

 

OnServerAddPlayer isn't defined in NetworkBehaviour and as such you can't override it. OnStartClient is only a message and as such, you can't override it either.

 

Has anyone gotten this to work? I'm pretty lost myself...