Loading Level using RPC

I have been using networking recently in Unity and have been getting an error when using an RPC. Here is the code for my RPC Function.

    [RPC]
    void updateLevelOne(NetworkPlayer player, string LevelName)
    {
        Application.LoadLevel(levelOne);
    }

Then this is where the RPC Function is being called:

    void HostMenu(){
        if (isHostMenu) {
            GUI.Label(new Rect(leftIndent, 100, 200, 100), "Set up a Server", "Sub Menu Title");
           
            GUI.Label(new Rect(leftIndent, Screen.height / 2 - 100, 380, 50), "Server Port: ");
            portNumber = int.Parse(GUI.TextField(new Rect(250, Screen.height / 2 - 110, 250, 50), portNumber.ToString()));
           
            GUI.Label(new Rect(leftIndent, Screen.height / 2 - 40, 380, 50), "Player Amount: ");
            numberOfPlayers = int.Parse(GUI.TextField(new Rect(290, Screen.height / 2 - 50, 250, 50), numberOfPlayers.ToString()));
           
            if(GUI.Button (new Rect(leftIndent, Screen.height / 2 + 80, 250, 50), "Isolation")){
                multiplayerMap = levelOne;
            }
           
            if(GUI.Button (new Rect(leftIndent + 260, Screen.height / 2 + 80, 250, 50), "Get Rekt")){
                multiplayerMap = levelTwo;
            }
           
            if(GUI.Button(new Rect(leftIndent + 160, Screen.height - 60, 150, 50), "Start!")){
                Network.InitializeServer(numberOfPlayers, portNumber, true);
                networkView.RPC("updateLevelOne", RPCMode.AllBuffered, 2);
                isHostMenu = false;
                isConnectMenu = false;
                isMultiplayerMenu = false;
            }
        }
    }

Then finally the error that is given to me when I try to use the start button:

Sending RPC failed because 'updateLevelOne' parameter 0 didn't match the RPC declaration. Expected 'UnityEngine.NetworkPlayer' but got 'System.Int32'
UnityEngine.NetworkView:RPC(String, RPCMode, Object[])

Any help will be appreciated. Thanks!

Well, the procedure you are trying to call takes a Networkplayer argument and a string argument. You are passing an int to it. This obviously won’t work.

For an example on how to achieve what you are (presumably) trying to do, take a look at http://docs.unity3d.com/Manual/net-NetworkLevelLoad.html