HarmonyOS 鸿蒙Next 蓝牙配对成功后调用蓝牙连接接口，socket.sppConnect为何报错

蓝牙开关是打开的，扫描是正常的，到连接的时候就报错了：bluetooth serverSocket code: 2900003 BussinessError 2900003: Bluetooth disabled
aboutToAppear(): void {
  try {
    connection.on(‘bluetoothDeviceFind’, (data: Array<string>)=>{
      const deviceName = connection.getRemoteDeviceName(data[0])
      if (data.length > 0 && “XXX” === deviceName) {
        try {
          connection.stopBluetoothDiscovery();
        } catch (err) {
          console.error('errCode: ’ + (err as BusinessError).code + ', errMessage: ’ + (err as BusinessError).message);
        }
        try {
          let sppOption: socket.SppOptions = { uuid: ‘00001810-0000-1000-8000-00805F9B34FB’, secure: false, type: 0 };
          socket.sppConnect(data[0], sppOption, (code: BusinessError, number: number)=>{
            if (code.code != 0 || code == null) {
              console.log('bluetooth serverSocket code: '+code.code +" "+code.message);
              return;
            }
            console.log('bluetooth serverSocket Number: ’ + number);
            // 获取的clientNumber用作客户端后续读/写操作socket的id。
            this.clientNumber = number;
          });
        } catch (err) {
          console.error('errCode: ’ + (err as BusinessError).code + ', errMessage: ’ + (err as BusinessError).message);
        }
      }
    });
    connection.startBluetoothDiscovery();
  } catch (err) {
    console.error('errCode: ’ + (err as BusinessError).code + ', errMessage: ’ + (err as BusinessError).message);
  }
}