title: How can I fix a Gem deprecation Issue?
body: <p>I ran <code>bundle install</code> and it was successful. However, when I ran <code>ruby script/server</code>, I got a lot of messages before the server actually started:</p>
  
  <pre><code>NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
  Gem::SourceIndex#add_spec called from /usr/local/lib/site_ruby/1.8/rubygems/source_index.rb:127.
  
  NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
  Gem::SourceIndex#add_spec called from /usr/local/lib/site_ruby/1.8/rubygems/source_index.rb:127.
  
  NOTE: Gem::SourceIndex#add_spec is deprecated, use Specification.add_spec. It will be removed on or after 2011-11-01.
  Gem::SourceIndex#add_spec called from /usr/local/lib/site_ruby/1.8/rubygems/source_index.rb:127.
  </code></pre>
  
  <p>How can I fix this?</p>