The connection to adb is down, and a severe error has occured.  You must restart adb and Eclipse.

之前运行eclipse执行android应用都没问题，今天突然出问题了，控制台报错：   
The connection to adb is down, and a severe error has occured.  You must restart adb and Eclipse.  
Please ensure that adb is correctly located at 'D:\android-2.2-windows\tools\adb.exe' and can be executed.  

解决方法： 

1.先把eclipse关闭.  
2.在cmd转到你的android SDK 的platform-tools下,   
3.键入adb kill-server 
4.再输入 adb start-server 如果不成功会提示 daemon not running. starting it now on port ***的 
而如果成功的话不提示任何语句的.这时再重新打开eclipse就可以正常运行模拟器的了.  

From：lost_平

Email：1037178580@qq.com