1.先把eclipse关闭.
2.在管理器转到你的android SDK
的platform-tools下, 如图:
3.键入adb
kill-server
4.再输入 adb start-server 如果不成功会提示 daemon not
running. starting it now on port ***的
而如果成功的话不提示任何语句的.这时再重新打开eclipse就可以正常运行模拟器的了.
5、查看端口是否冲突：
adb.exe和tadb.exe（腾讯的程序）会端口冲突，或者“豌豆荚”或“手机助手”类的软件占用了adb 。
The connection to adb is down, and a severe error has occured.,布布扣,bubuko.com
The connection to adb is down, and a severe error has occured.