Android ADB server didn't ACK 解决方法

eclipse执行android应用控制台报错:
     
    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.
 
在命令行下(运行 ==> cmd)运行 adb start-server
     
     errors:
     * daemon not running. starting it now * 
     ADB server didn't ACK
     * failed to start daemon *

 
确认 adb.exe 路径没有问题。重启模拟器和eclipse还是不行
 
解决方法:
1 > 方法一
   11> 查看任务管理器,关闭所有 adb.exe 
   12> 重启eclipse即可
2> 方法二
    21> 在命令行下运行,adb kill-server ,如果 adb 关闭了会提示 server not running *
    22> 再输入 adb start-server  如果不成功会提示 daemon not running. starting it now on port  ***  ,而如果成功的话不提示任何语句的
    23> 重新打开 eclipse 可以正常运行模拟器
原文地址:https://www.cnblogs.com/LYshuqian/p/2919127.html