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);
     }
     //------------------------------------------------------------------------------
 
 }