Redmine

I am trying to use the trac_to_redmine feature. From http://www.redmine.org/wiki/redmine/RedmineMigrate#Trac, I read to start with an empty database with default data loaded.

So, I backed up the old database and created a new database with a different name in MySQL. I then changed the database that my production environment points to in the database.yml file.

When I tried the command: RAILS_ENV=production rake db:migrate, I got this error:

(in /opt/redmine)
rake aborted!
Mysql::Error: Table 'redmine_multialign.custom_fields' doesn't exist: SHOW FIELDS FROM `custom_fields`

(See full trace by running task with --trace)

I don't understand why it is looking for a table when I am trying to setup the original table structure in the database. Am I missing a step to setting up a fresh database?

Thanks.