hi guys no idea why I'm getting error CS0117: `UnityEngine.MasterServer' does not contain a definition for `ipAdress'

Hi trying to follow a tutorial on youtube and getting:
error CS0117: UnityEngine.MasterServer' does not contain a definition for ipAdress’

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

public class Masterserverutills {

	public static string uniqueGameType = "_EarthAllianceOnline_GGHFUDUIEDSEJ%34567546745675468";
	public static bool useCustomConfigureation = true;
	public static string CustromConfigIP = "wouldnt U Like To Know";  //(Server IP HERE)
	public static int CustomConfigPort = 23466;


	//------------------------------------------------------------------------------
	private static void ConfigureMasterServer()	{
		if (useCustomConfigureation) {
			MasterServer.ipAdress = CustromConfigIP;
			MasterServer.port = CustomConfigPort;
		}
	}
	//------------------------------------------------------------------------------

	//------------------------------------------------------------------------------
	public static void RequestHostList ()	{
		ConfigureMasterServer();
		MasterServer.RequestHostList(uniqueGameType);
	}
	//------------------------------------------------------------------------------

	//------------------------------------------------------------------------------
	public static void ListHosts ()	{
		ConfigureMasterServer ();
		HostData[] hostData = MasterServer.PollHostList ();
		MasterServer.CleartHostList ();
		return hostData.ToList ();

	}
	//------------------------------------------------------------------------------

	//------------------------------------------------------------------------------
	public static void RegisterWithMasterServer(string gameName,string comment ){
		ConfigureMasterServer ();
		MasterServer.RegisterHost (uniqueGameType, gameName, comment);
	}
	//------------------------------------------------------------------------------

	//------------------------------------------------------------------------------
	public static void OnFailedToConnectToMasterServer(NetworkConnectionError info){
		Debug.Log ("Unable to Connect To Master Server - " + info);
	}
	//------------------------------------------------------------------------------

}

Because address is spelt with two "d"s: ipAddress