1、首先下载最新版adb.exe工具包

2、解压后把找到adb.exe、AdbWinApi.dll、AdbWinUsbApi.dll这三个文件

3、把那三个文件复制到C:Windowssystem里

如果您已经按照上诉方法进行操作后还是无法正确启动，可以参照下面几个方法进行操作

1.报错：

BUILD FAILED

D:workspaceganjibuild.xml:144: The following error occurred while executing this line:

D:workspaceganjibuild.xml:271: Unable to delete file D:workspaceganjitmpproguardtmp.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.

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-toolsadb.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)