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

I came back to a VS 2010 C# SharePoint project after a while and found it wouldn’t open the project.

The error: The project type is not supported by this installation.

This error generally means that the project type you are trying to open is not supported in that Visual Studio Installation. 🙂 Reasons this situation could come about is an improper sequence of Visual Studio add-on installs/patching, or simply having built the project on one VS install and opening it on another.

Solutions:

1. Check whether the VS2010 product you installed supports web development

Please see:
For VS2010 Express products:
http://www.microsoft.com/express/Charts/VisualStudio-Express-2010-Feature-Chart.aspx

For VS1010 retail products:
http://www.microsoft.com/visualstudio/en-us/products
(Expand the node of “Product Feature”)

2. If you’re running VS2010 retail products
..like Professional edition, Premium Edition, check Help Menu > About Microsoft Visual Studio > Installed products? Please check whether “Microsoft Visual Web Developer 2010” has been installed properly.

3. Delete the
If those 2 steps fail to yield a result, do what I did – open the Visual Studio project file .csproj for example in notepad, remove the values in the node, save and open again.

So, (in my project), I deleted the GUID values from the following node:

<ProjectTypeGuids>{BB1F664B-9266-4fd6-B973-E1E44974B511};{14822709-B5A1-4724-98CA-57A101D1B079};{FBE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>

so it became:

<ProjectTypeGuids></ProjectTypeGuids>

..save the file and open project again in Visual Studio. Project subsequently works.

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