EnvDTE VS 2012 ProjectItems.AddFolder

Question

I am recreating an AddIn project that I had in VS 2010 and a basic function like adding a folder to the project is not working. Giving me:

The kind 'vsProjectItemKindPhysicalFolder' passed to ProjectItems.AddFolder is invalid.

Does anyone know how to solve this?

Thank you

Answer 1

The problem is that you need to pass in the constant named vsProjectItemKindPhysicalFolder and not the name of the constant as a project type:

proj.ProjectItems.AddFolder(@"Generated", EnvDTE.Constants.vsProjectItemKindPhysicalFolder);

Answer 2

This is most likely because you already have a folder by that exact name on the physical disk, but is not part of the project yet. You should try renaming the existing folder and try doing that action again.