Visual Studio 2012 Professional 中缺少 ADO.NET 实体数据模型模板
问题描述：
缺少来自 Visual Studio 2012 Professional 的 ADO.NET 实体数据模型模板.我什至没有 Visual Studio 模板类别中的数据"类别.
Missing ADO.NET entity data model template from Visual Studio 2012 Professional. I don't even have "Data" category from Visual Studio template category.
我修改了 Visual Studio 2012 安装，并选择了所有可用的包进行安装.但即便如此也没有运气.
I modified the Visual Studio 2012 installation, and selected all the available packages to install. But even then no luck.
答
我在 C:\ProgramData\Package Cache 中搜索了eftools.msi"
I did a search in C:\ProgramData\Package Cache for "eftools.msi"
有三个版本(我猜来自不同的测试版/RC)
There were three versions (from different beta/RCs I guess)
我选择了最新的并安装了它.
I picked the most recent and installed it.
这为我解决了问题.