The connection to adb is down, and a severe error has occured.
之 ..\sdk\platform-tools\adb.exe and can be executed.问题
原因:
一般情况是因为adb.exe进程的端口被其他应用程序占用了，所以无法部署到手机
解决步骤:
1.关闭adt,打开任务管理器，查看是否存在adb.exe进程,如果存在，则结束该进程
2.cmd控制台, cd 到adb的sdk/platform-tools目录下
3.输入adb kill-server结束服务,再adb start-server,重新启动adb.exe进程
4.任务管理器查看adb.exe进程是否成功启动
5.over
[Android]ADT Run时候报错：The connection to adb is down, and a severe error has occured,布布扣,bubuko.com
[Android]ADT Run时候报错：The connection to adb is down, and a severe error has occured
原文：http://www.cnblogs.com/hellenism/p/3617720.html