我下了个Pixel XL API 27的模拟器，再运行程序就出现了下面的问题
Unable to connect to ADB.Check the Event Log for possible issues.Verify that your localhost entry is pointing to 127.0.0.1 or ::1 for IPv4 or IPv6, respectively.
参考了下面的博客
Android Studio无法运行程序调试程序出现Unable to connect to ADB.Check the Event Log for possible issues.Verify th
可能是有进程占用了ADB端口，我关掉了一个录屏软件，就可以了
