Third Party Error cs0115:CustomNetworkManager.OnServerAddPlayer(NetworkConnection)': no suitable method found...

Assets\Scripts\Network\CustomNetworkManager.cs(13,26): error CS0115: 'CustomNetworkManager.OnServerAddPlayer(NetworkConnection)': no suitable method found to override

I followed a tutorial on multiplayer and this is the only error I got.(I also use Mirror, Steamworks)
I tried to search up this issue, one mentioned that new arguments where added to the method, but adding them couldn't help, maybe because the tutorial's creator used an older version of Mirror.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Mirror;
5. using UnityEngine.SceneManagement;
6. using Steamworks;
7.  
8. public class CustomNetworkManager : NetworkManager
9. {
10.     [SerializeField] private PlayerObjectController GamePlayerPrefab;
11.     public List<PlayerObjectController> GamePlayers { get; } = new List<PlayerObjectController>();
12.  
13.     public override void OnServerAddPlayer(NetworkConnection conn)
14.     {
15.         if (SceneManager.GetActiveScene().name == "Lobby")
16.         {
17.             PlayerObjectController GamePlayerInstance = Instantiate(GamePlayerPrefab);
18.             GamePlayerInstance.ConnectionID = conn.connectionId;
19.             GamePlayerInstance.PlayerIdNumber = GamePlayers.Count + 1;
20.             GamePlayerInstance.PlayerSteamID = (ulong)SteamMatchmaking.GetLobbyMemberByIndex((CSteamID)SteamLobby.Intance.CurrentLobbyID, GamePlayers.Count);
21.  
22.             NetworkServer.AddPlayerForConnection(conn, GamePlayerInstance.gameObject);
23.         }
24.     }
25. }

 

I'm having this issue as well. Anyone got a solution to this?

 

Try NetworkConnectionToClient instead of NetworkConnection, it worked for me.

 

Did you ever figure it out? I'm having this problem