配置Android ADT可能会出现一下问题

Failed to initialize Monitor Thread: Unable to establish loopback connection
ADB server didn't ACK
failed to start daemon *

解决办法：

dos下进入SDK目录下的tools目录，执行以下命令： 

adb kill-server
adb start-server

如果还有这个问题，请关闭你的防火墙，OK！