ADB server didn't ACK的解决方法

异常信息如下：

C:UsersAdministrator>adb devices
* daemon not running. starting it now on port 5037 *
ADB server didn't ACK
* failed to start daemon *
error: cannot connect to daemon

解决方案：

netstat -aon|findstr "5037"
tasklist /fi "pid eq 8944