HarmonyOS 鸿蒙Next socket tcp连接报错

/**
* 连接服务器
*/
public startTcpSocketConnect() {
//连接服务器的地址和端口
connectAddress: socket.NetAddress = {
address: CameraSocket.IP,
family: 1,
port: 5000
}
//开始连接
let tcpConnect: socket.TCPConnectOptions = {} as socket.TCPConnectOptions;
tcpConnect.address = this.connectAddress;
tcpConnect.timeout = CONNECT_TIMEOUT;

this.log('SocketDemo tcpSocket.connect info:' + JSON.stringify(tcpConnect));

tcpSocket.connect(tcpConnect, (err: BusinessError) => {
// {"code":2301115,"message":"Operation in progress"}
this.log('SocketDemo tcpSocket.connect error:' + JSON.stringify(err));
if (err) {
this.log('SocketDemo 连接服务器失败');
return;
}
this.log('SocketDemo 连接服务器成功,准备执行上线操作');
});
}