I have several projects defined, and when I run C-c p p, it will list all of the projects. Now I don't want a project and I have deleted the .projectile file under that project, but it still shows up. How do I delete it?
The function projectile-remove-known-project prompts for a project to forget about. projectile-remove-current-project-from-known-projects removes the active project.
Known projects are stored in the file ~/.emacs.d/projectile-bookmarks.eld.