I´m developing a visual studio extension, but unfortally I can´t check the project kind , please look de follow code:

```
 if (project.Kind == EnvDTE80.ProjectKinds.vsProjectKindSolutionFolder)
            {
                list.AddRange(GetSolutionFolderProjects(project));
            }
            else
            {
                list.Add(project);
            }

```

[![enter image description here](https://i.stack.imgur.com/tfnRA.png)](https://i.stack.imgur.com/tfnRA.png)