ASP.NET MVC 4 Visual Studio 2010项目模板不存在

I have downloaded and installed all of the prerequisites for using MVC 4 with VS2010. The VS2010 SP1 update, ASP.NET MVC 4 for VS2010, SSDT for VS2010, and LocalDB. When I go to create a new website in VS2010, there should be an "ASP.NET MVC 4 Web Application" template, but there is not. How can I get the templates so I can start a new MVC 4 website in Visual Studio 2010?I have downloaded and installed all of the prer