Hello ! If you want to create models, views and controllers using the command line "sudo ruby ./script/generate scaffold book test" and rails is plugged to an existing database which tables are named in singular Don''t forget that Rails will search a table named "books" even if you specify the table name "book" without "s". Rails will return the error "Before updating scaffolding from new DB schema, try creating a table for your mode" Even if the name of the table is matching the name of the model specified in the command line If you want to deactivate this behaviour, in case of testing RoRs with your existing database, you must add in your environment.rb file the following variable : ActiveRecord::Base.pluralize_table_names = false HM -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060202/7c36661b/attachment-0001.html