Hmm, what is Knob?  Is there a Knob cardtype that you've created?  The error suggests that it's expecting there to be one but can't find one...

This is with a plain vanilla install; I haven't created any cards. I agree that it seems to be looking for one.

  --Anonymous (Not signed in).....Wed Jun 23 12:38:43 -0700 2010

interesting. I just found that "Knob" was somewhat arbitrarily used in a migration for "Setting" and then migrated back to its real name. What happens if you run rake db:migrate? any issues? Wondering if it got stuck in a former migration.

  --Ethan McCutchen.....Wed Jun 23 15:03:29 -0700 2010

I get a deprecation warning but no errors. Looking at the schema_migrations table, it appears that all of the migration were run successfully.

  --Anonymous (Not signed in).....Thu Jun 24 10:51:05 -0700 2010