Network.RemoveRPCs Problem.

I took this stright from the docs but it throws me some errors.

Code:

     void OnPlayerDisconnected(NetworkPlayer player) {
         Debug.Log("Clean up after player " + player);
         Network.RemoveRPCs(player);
         Network.DestroyPlayerObjects(player);
     }

Errors:

Assets/Scripts/Managers/NetworkManager.cs(162,25): error CS1502: The best overloaded method match for UnityEngine.Network.RemoveRPCs(UnityEngine.NetworkPlayer)' has some invalid arguments Assets/Scripts/Managers/NetworkManager.cs(162,25): error CS1503: Argument #1' cannot convert NetworkPlayer' expression to type UnityEngine.NetworkPlayer'

Assets/Scripts/Managers/NetworkManager.cs(163,25): error CS1502: The best overloaded method match for UnityEngine.Network.DestroyPlayerObjects(UnityEngine.NetworkPlayer)' has some invalid arguments Assets/Scripts/Managers/NetworkManager.cs(163,25): error CS1503: Argument #1' cannot convert NetworkPlayer' expression to type UnityEngine.NetworkPlayer'