Publishing not working: troubleshooting

[Leo Ferres <lferres@ccs.carleton.ca>]

Hello,

I was wondering if anyone could help me with this. I guess this
question has been asked before, but I couldn't find an answer.
Apologies.

The setting:

I have a require entry in my .emacs that reads:

(require 'dervin-org-projects)

and a file dervin-org-projects.el that reads:

(require 'org-publish) ;; I've tried without this as well
(setq org-publish-project-alist
      '(("orgfiles"
	 :base-directory "~/org/courses/"
	 :base-extension "org"
	 :publishing-directory "/ssh:myuser@myhost:~/public_html/"
	 :recursive t
	 :publishing-function org-publish-org-to-html
	 :exclude "PrivatePage.org" ;; regexp
	 :headline-levels 3
	 :section-numbers t
	 :table-of-contents nil
	 :auto-preamble t
	 :auto-postamble nil)

	("images"
	 :base-directory "~/org/courses/images"
	 :base-extension "jpg\\|gif\\|png"
	 :publishing-directory "/ssh:myuser@myhost:~/public_html/"
	 :publishing-function org-publish-attachment)

	("other"
	 :base-directory "~/org/courses/other/"
	 :base-extension "css\\|el\\|pdf"
	 :publishing-directory "/ssh:myuser@myhost:~/public_html/"
	 :publishing-function org-publish-attachment)
	("courses" :components ("orgfiles" "images" "other"))))

(provide 'dervin-org-projects)

When I attempt to publish the project with C-c C-e X, and I choose
"courses", absolutely nothing happens. There's not even a message that
appears. I therefore don't know how to troubleshoot this by myself.
Could anyone help?

Thank you and best regards,

Dervin