在终端输入adb命令，出错如下：

localhost:work zhangyg$ adb devices

List of devices attached

adb server version (32) doesn't match this client (36); killing...

error: could not install *smartsocket* listener: Address already in use

ADB server didn't ACK

* failed to start daemon *

error: cannot connect to daemon

错误原因是选择了使用Genymotion的Android tools，所以导致与Android SDK下的adb程序冲突。

在Genymotion的主界面点击【Settings】如下图：

选择【Use custom Android SDK tools】，然后选择Androd SDK根目录，如下图：

重启Genymotion的虚拟机即可解决问题。