EFCodeFirst安装失败（包含EntityFrameWork安装）解决方案

　　今天在安装EFCodeFirst包时出现“This package (or one of this dependencies) contains PowerShell scripts and needs to be installed from the pAckage Manager Console.”。因为用的是WIN7  EntityFrameWork补丁也没有安装成功、然后在网上找到了这篇文章、我把它放在这里下次如果遇到同样的问题可以快速的找到解决办法。　　今天在安装EFCodeFirst包时出现“This package (or one of