出现
Error: user ack timeout
at Object.reject (/usr/lib/node_modules/miio/lib/device.js:217:13)
at Device._onMessage (/usr/lib/node_modules/miio/lib/device.js:108:8)
at Socket.emit (events.js:315:20)
at UDP.onMessage (dgram.js:910:8) {
code: -9999
}
是什么情况呢,有大神知道么