Flutter运行iOS模拟器时提示The mDNS query for an attached iOS device failed

可以先检查一下是不是flutter的运行target有问题。

这时候在Android Studio下方信息栏会提示Disconnected from the target VM, address: '127.0.0.1:52315', transport: 'socket'

解决方案：target需要选择main.dart

参考：https://blog.csdn.net/qq_36604139/article/details/102543539