I'm guessing in you database.yml file you have this: development: adapter: mysql
So you need todo this: # gem install mysql or if mysql is in a none standard area you need to point to mysql_config like this: # gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/ mysql_config (or where ever you have mysql installed) Show us output from the following: gem list inside of you application => rake gems --~--~---------~--~----~------------~-------~--~----~ 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@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---