Tuesday, April 3, 2012

Visual Studio 2010 - The project type is not supported by this installation

If you see the below error while opening a project in Visual Studio:
...\xyz.csproj : error  : The project file '...\xyz.csproj' cannot be opened.
The project type is not supported by this installation.

The fix is to follow the below steps:
  • Open the csproj file in notepad or xml editor
  • Look for the node <ProjectTypeGuids>{E53F8FEA-EAE0-44A6-8774-FFD645390401};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
  • Do a bing search for the project type guids to find out the dependencies which need to be installed
  • Install the dependencies and you should be able to open the project


  1. Hi,
    I'm having this problem with my C# proj, I did what u said about checking the type guids and it needs C# and I have it installed. But still it does not work. Tried deleting the ProjectTypeGuids line but still does not work.
    Im using VS 2010 professional and on my other computer I've VS 2010 ultimate (where I wrote and created the proj).

    Can I fix this somehow without having to install the Ultimate version again?

    Thankful for help n tips :)

  2. Hmm, I think you will have to install the Ultimate version if you are using a project type which is only available in Ultimate version. You can also try comparing the installed programs on the two machines if you are missing something else.

  3. I was having this issue and this helped immensely. I commend you particularly with providing the reader the resources to investigate the issue rather than just telling people they are missing a package or need to download MVC, which seems to be thee popular response to this issue. As it turned out I needed MVC4, but it was more helpful to understand how and where to uncover the issue, rather than blindly just downloading a package. Thanks again.

  4. I only had to install MVC 4 to fix "Visual Studio 2010 - The project type is not supported by this installation".