title: Open an exising MVC 3 project in visual studio 11 developer preview
body: <p>I've trying to open and convert an existing vs 2010 mvc 3 project in the new dev 11 preview and am running in to a difficult issue. The solution file will convert successfully,  however the one mvc 3 web project in the solution shows in the solution explorer as unloaded post conversion. When i attempt to reload the project from solution explorer, i get prompted to convert the project and receive the following error in the upgradelog.xml</p>
  
  <p>The project file'myproject.csproj' cannot be opened. There is a missing project subtype. Subtype: '{E53F8FEA-EAE0-44A6-8774-FFD645390401}' is unsupported by this installation.</p>
  
  <p>From what i could track down, this has to do with MVC, but that doesn't really help me work around the issue. Any suggestions or workarounds would be appreciated.</p>