the connection to adb is down and a server error has occured. You must restart adb and Eclipse.
Please ensure that adb is correctly located at 'E:\setups\android\android-2.1_r01- windows\tools\adb.exe' and can be executed.
解决方案很简单：在任务管理器中关闭最后三个字母和后缀是adb.exe的进程