I have project files created with MVC3, C#, VSE 2010 web developer. Just installed the latest VSE 2010 web developer. When I try to open .sln file i got the following message:

D:\Work\tech_descr\Site\Site.csproj : error : The project file 'D:\Work\tech_descr\Site\Site.csproj' cannot be opened. The project type is not supported by this installation.

I checked proposed solutions from forum, but it doesn't work. Looks like my versions of software are fine. here are strings from csproj:

<ProjectGuid>{9F99CE4B-6664-401C-AEFD-DD53C3281B42}</ProjectGuid> <ProjectTypeGuids>{F85E285D-A4E0-4152-9332-AB1D724D3325};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>