Android Studio - Unable to create Debug Bridge: Unable to start adb server: adb server version (32) doesn't match this client (40)

错误提示：Unable to create Debug Bridge: Unable to start adb server: adb server version (32) doesn't match this client (40)

错误原因：有已经运行的adb，端口被占用了。

解决方法：Ctrl + Alt + Del ，三个键子一起按，进入“任务管理器”，找到abd.exe，杀死正在运行的它。

参考：

https://stackoverflow.com/questions/49340436/error-initializing-adb-unable-to-create-debug-bridge-unable-to-start-adb-serve