Tasks You Need to Complete: 1. Update your layouts/application.html.erb as follows: <%= javascript_include_tag "jquery" %> <%= javascript_include_tag "jquery-ui" %> <%= javascript_include_tag "jquery.rest" %> <%= javascript_include_tag "ujs" %> 2. Add the following to the very bottom of your config/routes.rb file: # Defaults map.connect ":controller/:action/.:format"