ASP.NET MVC project "not supported by this installation"

ok the problem was too many changes, I unzipped the solution again and just changed the first parameter in the ProjectTypeGuids to {F85E285D-A4E0-4152-9332-AB1D724D3325} so it looks like

<ProjectTypeGuids>{F85E285D-A4E0-4152-9332-AB1D724D3325};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>

and I can see the project hurray!

You need to install ASP.NET MVC 2.

Just had a similar problem when taking an older MVC / Azure WebRole project into VS 2012 with MVC4. The trick was to edit the .CSPROJ like this:

10c11
<     <ProjectTypeGuids>{F85E285D-A4E0-4152-9332-AB1D724D3325};{349c5851-65df-11
da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
---
>     <ProjectTypeGuids>{E3E379DF-F4C6-4180-9B81-6769533ABE47};{349c5851-65df-11
da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>

i.e. change the first one from {F8... to {E3E3... (which is apparently MVC4). This has to be done outside of Visual Studio, in a text editor, and then open the solution and "Reload" the project that gave an error - this will trigger VS to migrate it to VS 2012.