"My First Law of Distributed Object Design:
Don't distribute your objects."
--Martin Fowler

Umbraco Development

I was recently tasked with evaluating Umbraco CMS. When I opened it in Visual Studio 2010 Ultimate, I got the following error...

   The project type is not supported by this installation  

To fix this, open the CMS UI project file with a text editor (I use Notepad++) and delete whatever you find between <ProjectTypeGuids></ProjectTypeGuids>

Next time you open the solution, all projects will load. 

The project file can be found at "Source\Web Apps\Umbraco.CMS.Web.UI\Umbraco.Cms.Web.UI.csproj"