[Orgmode] Problem with publishing to html

[markscala]

I updated to 7.02 today and now am unable to publish a project to
html.  This is the error reported in *Messages*

Publishing file /home/mark/teach/10fall/metaphysics/notes/index.org using 
`org-publish-org-to-html'
Exporting...
tramp-convert-file-attributes: Wrong type argument: numberp,
1288383678\.599600284\.0

Here's my setting of org-publish-project-alist:

  (setq org-publish-project-alist '(("metaphysics" 
                                     :base-directory 
"~/teach/10fall/metaphysics/notes/" 
                                     :publishing-directory 
"/ssh:address@hidden:~/metaphysics"
                                     :recursive t
                                     :section-numbers nil
                                     :table-of-contents nil
                                     :base-extension "org"
                                     :publishing-function 
org-publish-org-to-html
                                     :author-info nil
                                     :creator-info nil)))

Thanks,
Mark