Network Manager on remove player

Hello,

I am currently creating a custom network manager, overriding a few methods to implement a player list.

But every time I try to run, I receive an error:

Assets/Netman.cs(20,30): error CS0505: `Netman.OnServerRemovePlayer(UnityEngine.Networking.NetworkConnection, PlayerController)': cannot override because `UnityEngine.Networking.NetworkManager.OnServerRemovePlayer(UnityEngine.Networking.NetworkConnection, UnityEngine.Networking.PlayerController)' is not a method

Even though it is a...

Network Manager on remove player