I am using redmine in the /opt section I placed plugin dmsf inside /opt/redmine/apps/redmine/htdocs/plugins when I try to do rake redmine:plugins:migrate RAILS_ENV=production

I get:

rake redmine:plugins:migrate RAILS_ENV=production --trace

(in /opt/redmine-2.0.3-1/apps/redmine/htdocs) rake aborted!