Hi guys, It has a connection to the use of DB mysql4.0 from the environment of the ruby2.0 rails4.0 but I can not. Gem mysql2 seems to respond mysql4.1 or later and is reading the document Please teach the person that you know how you can connect. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/945af928-a0bc-43d0-b444-9a2c048f3f45%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.