PhotonView with ID 0 has no (non-static) method "StartLoadScene" marked with the [PunRPC](C#) or @Pu

HelpMe

I'm sure I've met all the requirements
1. Photon View and MainUI in the same gameObject
2.PhotonServerSetting->RPCs

Neither of these RPC is working properly

public class MainUI : BaseUI
    {
        [SerializeField]
        PhotonView photonview;
        // Use this for initialization
        protected override void InitUIOnAwake()
        {
            DontDestroyOnLoad(EventSystem);
        }
        protected override void InitDataOnAwake()
        {
            photonview = gameObject.AddComponent<PhotonView>();
        }

        [PunRPC]
        public void OnRoomPlayerUpdate(Player player)
        {
            //some method 
        }

        [PunRPC]
        public void StartLoadScene()
        {
            GameManager.Instance.LoadPlayer(GameData.Instance.localPlayer.CustomProperties["role"].ToString());
        }
        public void StartGame()
        {
            photonview.RPC("StartLoadScene", RpcTarget.All);
        }
        public void Ready()
        {
            photonview.RPC("OnRoomPlayerUpdate", RpcTarget.All, GameData.Instance.localPlayer);
        }
    }

HelpMe

please help me

HelpMe

OMG,I solved the problem，ID cannot be 0