If you have some troubles installing the pg gem you should install it like this first
env ARCHFLAGS="-arch x86_64" gem install pg
first_name last_name gender birthday role
Your bundle is complete! Use bundle show [gemname] to see where a bundled gem is installed.
Post-install message from httparty:
When you HTTParty, you must party hard!
Post-install message from paperclip:
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Paperclip 3.0 introduces a non-backward compatible change in your attachment
path. This will help to prevent attachment name clashes when you have
multiple attachments with the same name. If you didn't alter your
attachment's path and are using Paperclip's default, you'll have to add
:path and :url to your has_attached_file definition. For example:
has_attached_file :avatar,
:path => ":rails_root/public/system/:attachment/:id/:style/:filename",
:url => "/system/:attachment/:id/:style/:filename"