实时音视频android报‘the user need to login first’错误

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Objects.requireNonNull(getSupportActionBar()).hide();
        u = User.getInstance("XXX");

        TUIRoomKit.sharedInstance(this).setup(sdkAppId,u.getUserId(),u.getUserSig());
        
        RoomInfo roomInfo=new RoomInfo();
        roomInfo.name="room1";              // 请设置为您需要的房间名称
        roomInfo.roomId="1";           // 请设置为您需要的房间号
        roomInfo.isOpenCamera=true;      // 请按照您的业务需求设置
        roomInfo.isOpenMicrophone=true;  // 请按照您的业务需求设置

        TUIRoomKit.sharedInstance(this).createRoom(roomInfo, TUIRoomKit.RoomScene.MEETING);
    }