GetRoomList Problems

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;
using System;

public class Connection : Photon.MonoBehaviour
{
    // Dungeon Settings //
    public string[] potprefabs;
    public string[] chestprefabs;
    public string dungeonPlayerPrefab;
    // Hub Settings //
    public string hubPlayerPrefab;
    // Connection Settings //
    public string Version = 1 + "." + SceneManagerHelper.ActiveSceneBuildIndex;

    public string hubScene = "Hub";

    void Start()
    {
        DontDestroyOnLoad(gameObject);
        PhotonNetwork.autoJoinLobby = true;
    }


    void Update()
    {
        if (PhotonNetwork.connected == false)
        {
            PhotonNetwork.ConnectUsingSettings(Version);
        }
    }

    void OnJoinedLobby()
    {
        Debug.Log("Joined Lobby, Attempting To Join Hub..");
    }

    void OnJoinedRoom()
    {
        Debug.Log("Joined Room " + PhotonNetwork.room.name);
    }

    void OnReceivedRoomListUpdate()
    {
        Debug.Log(PhotonNetwork.GetRoomList().Length);
    }



}

    void OnReceivedRoomListUpdate()
    {
        Debug.Log(PhotonNetwork.GetRoomList().Length);
    }