android中The connection to adb is down,问题和解决

自己总结的在android中常会出现的不好解决的问题和方法 
(其中第三个方法经过了四天的折磨。。。。。哎) 

1.报错: 
BUILD FAILED 
D:\workspace\ganji\build.xml:144: The following error occurred while executing this line: 
D:\workspace\ganji\build.xml:271: Unable to delete file D:\workspace\ganji\tmp\proguard\tmp.jar 
解决: 
已经开了一个模拟器了,无法重新编译,必须关闭一个。用于ant 


2.报错: 
The connection to adb is down, and a severe error has occured. 
这个问题谁能解决啊 
解决: 
cmd跳到sdk tools文件路径下 
adb kill-server 
然后再adb start-server 

3.报错: 
The connection to adb is down, and a severe error has occured. 
[2010-03-11 09:36:56 - HelloOPone] You must restart adb and Eclipse. 
[2010-03-11 09:36:56 - HelloOPone] Please ensure that adb is correctly located at 'D:\OPhoneSDK_1.5 
\platform-tools\adb.exe' and can be executed. 
解决: 
方法1.cmd中adb kill-server,然后adb -startserver 
方法2.方法1不管用,那么在任务管理器中杀死adb.exe,然后重启Eclipse。 
方法3.方法1和2都不管用,那么查看最后一句报错中:platform-tools中是否有adb.exe(我的错误就是在相关路径下面没有platform-tools文件夹 
,所以我选择新建一个文件夹,并且把tools中的文件全部复制到platform-tools中) 
4.前面的方法试了还是不行的话,建议重新装一个系统,最好换个系统。有些大牛也说过:MS存在一些小问题

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