Userengine + Upload Progress help

I’m trying to setup loginengine/userengine for my site, and I’ve added
one
Extra field to the ‘user’ table, which is supposed to store the filename
of the user’s picture. Now, I have upload_progress/file_column working
on other parts of my site, but when I try to submit a multipart from
within user/edit controller I get the following error message
in my dev. log:

Exception during setup of read_multipart_with_progress:
undefined class/module Role

I’m looking at the source code which is producing this error @
http://server2.tecweb.inf.puc-rio.br:8000/projects/hyperde/trac.cgi/
browser/branches/adapt/vendor/actionpack/lib/action_controller
/cgi_ext/multipart_progress.rb?rev=26

But to be honest, I’m not sure where/why this pops up.

Any suggestions?

Thanks.
Ilya