uni-app连接mqtt接受订阅消息后执行报错导致断开连接(连接方式为WebSocket)
报错信息：
Error in event handler for "api.onSocketTaskStateChange": "TypeError: Cannot read property 'url' of undefined"
(found )
TypeError: Cannot read property 'url' of undefined
连接的代码发出来；看错误应该是你的url前缀可能没加