Hello, I''m working on a rails 3.0 project and today I tried to add a counter cache column, but I keep getting this error: ArgumentError: Unknown key(s): counter_cache This happens with any combinations of rails 3.0 beta4, rc, ruby 1.8.7 and 1.9.2. Regards Andrea -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.