C# InTheHand.Net.Bluetooth库连接蓝牙时报错,该怎么解决并连接蓝牙设备哇

我想问问:unity 用C# InTheHand.Net.Bluetooth库连接蓝牙时,报错
-SocketException: 由于套接字没有连接并且(当使用一个 sendto调用发送数据报套接字时)没有提供地址，发送或接收数据的请求没有被接受-
该怎么解决并连接蓝牙设备哇

    public IEnumerator GetScan(Button button)
    {
        State.text = "当前状态:扫描中" ;
        button.GetComponentInChildren<Text>().text = "扫描中";
        button.interactable = false;

        Task<IReadOnlyCollection<BluetoothDeviceInfo>> Scan = Task.Run(() =>
        {
            return client.DiscoverDevices();
        });
        while (!Scan.IsCompleted)
        {
            
            yield return null;
        }
        ListUpdate(Scan.Result, Parent);
        button.GetComponentInChildren<Text>().text = "刷新";
        button.interactable = true;
    }

    public void ListUpdate(IReadOnlyCollection<BluetoothDeviceInfo> Scanlist,GameObject Parent)
    {
        for (int i = 0; i < transform.childCount; i++)
        {
            Destroy(transform.GetChild(i).gameObject);
        }
        foreach (var item in Scanlist)
        {

            GameObject obj = Instantiate(CloneObj, Parent.transform);
            obj.transform.Find("DeviceName").GetComponent<Text>().text = item.DeviceName;
            obj.transform.Find("DeviceAddress").GetComponent<Text>().text = item.DeviceAddress.ToString();
            obj.GetComponent<Button>().onClick.AddListener(() =>
            {
                obj.SetActive(false);
                Debug.Log(item.DeviceAddress);
                obj.SetActive(!Connect(item.DeviceAddress));
            });
            obj.SetActive(true);
        }
    }
    public void Searchequipment()
    {
        IReadOnlyCollection<BluetoothDeviceInfo> devices = client.DiscoverDevices();
        foreach (var item in devices)
        {
            Debug.Log(item.DeviceAddress);
            Debug.Log(item.DeviceName);
        }
    }

    public bool Connect(BluetoothAddress address)
    {
        Debug.Log("正在连接！");
        BluetoothClient cli = new BluetoothClient();
        cli.Connect(address, BluetoothService.SerialPort);
        State.text = cli.Connected ? "当前状态:已连接" : "当前状态:未连接";
        return cli.Connected;
    }

蓝牙本质上相当于网卡，检查下配对是否正常，是否获得了地址，以及是否可以连接
检查下电脑的防火墙是否阻止了连接。程序里的端口、地址、协议是否正确。