求救：Windows Phone 7.1SDK安装失败提示：Setup could not install the following component:Microsoft Exp
求救：Windows Phone 7.1SDK安装失败
提示：
Setup could not install the following component:
Microsoft Expression Blend 4 for Windows Phone 7.1
请高手解答
[解决办法]
我安装7.1SDK也遇到该问题，重启后，重新下载安装就OK了。你再试试。