ddms: Failed to initialize Monitor Thread

Question

以前都是好好的, 今天双击Uiautomatorviewer, 弹出提示
ddms: Failed to initialize Monitor Thread: Unable to establish loopback connection

然后一直尝试连接
DeviceMonitor: Connection attempts: 1
DeviceMonitor: Connection attempts: 2
DeviceMonitor: Connection attempts: 3
.
.
.
DeviceMonitor: Connection attempts: 7
DeviceMonitor: Connection attempts: 8
DeviceMonitor: Connection attempts: 9

这是怎么回事啊

Answer 1

https://my.oschina.net/itblog/blog/204569