some error occur webscoket

使用hbuilderx 2.4.2 版本 链接成功
{"socketTaskId":"1575623683977","errMsg":"connectSocket:ok"}
但是使用(async () => {
await uni.sendSocketMessage({
data: bytes.buffer,
complete: (res) => {
console.log('发送信息')
console.log(res)
this.times++
console.log(this.times)
}
});
})()
时报错
{"errMsg":"some error occur"}