[Android] The connection to adb is down, and a severe error has occured

一.ADB server didn't ACK
在配置完Android环境后,运行第一个程序时,遇到了如下错误：
        ADB server didn't ACK
        * failed to start daemon *
它可能的原因是端口5037被占用,需要查找占用5037（Android默认）端口的PID,在cmd中输入：
        netstat -ano | findstr "5037"
输出进程：
        TCP    127.0.0.1:5037         0.0.0.0:0              LISTENING       9292
        TCP    127.0.0.1:5037         127.0.0.1:49422        ESTABLISHED     9292
        TCP    127.0.0.1:49422        127.0.0.1:5037         ESTABLISHED     3840
此时把该进程“9292”结束,代码如下：
        TASKLIST | findstr "9292"
二.The connection to adb is down, and a severe error has occured
在执行上面的结果后可能还会遇到一个错误,经常出现的错误：
        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:\..\platform-tools\adb.exe' and can be executed.
如下图所示：

解决方法是在cmd中调用adb kill-server,再调用adb start-server开启服务.但是可能会出现错误：
        adb server is out of date.  killing...
        ADB server didn't ACK
        * failed to start daemon *

这是因为端口号被占用,查看豌豆荚或手机助手占用端口号,将kadb\qadb进程关闭.
具体方法如下：
1.先将Eclipse和豌豆荚关掉,同时结束进程kadb.

2.使用cd去到platform-tools文件夹下(含有adb.exe),并开启adb服务如我的指令是：
       G:
       cd G:\software\Program software\Android\adt-bundle-windows-x86_64-20140321\sdk\platform-tools
        adb start-server
成功时输出：
        * daemon not running.Starting it now on port 11888*
        * daemon started successfully *

最后点击platform-tools文件夹中adb.exe应用程序,再运行程序即可.
注意上面的程序上面的程序输出端口号为11888,如果你的还是不成功,可以修改环境的端口号,如下：

修改端口号再按上面的步骤实现即可.这是配置Android+Eclipse的错误解决方案,希望对你有用~
(By:Eastmount 2014-10-20 夜2点 http://blog.csdn.net/eastmount/)

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