Now, i have project using rails and postgresql. I alr download new rails form http://railsinstaller.org/, so i run and install rails, i alr update gem, gem install postgresql-pr, gem install pg. But when i run rake db:migrate, have problem : Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. I have go to github, stackoverflow.com, ..... to check it, but nw i cant fix it. My rails version is : rails -v : 3.2.8, ruby -v : 1.9.3p125, gem -v : 1.8.16. Nw i tired with it and i hope to have help from people. Thank so much!! -- 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 To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/I4VUmvCQBg0J. For more options, visit https://groups.google.com/groups/opt_out.