title: WARNING: Nokogiri was built against LibXML version 2.7.3, but has dynamically loaded 2.7.8
body: <p>After making a fresh install of Mac OS X 10.8 Mountain Lion, and after installing Ruby 1.9.3 and Ruby on Rails 3.2.6, I started the Rails console and I got this warning message:</p>
  
  <blockquote>
    <p>WARNING: Nokogiri was built against LibXML version 2.7.3, but has
    dynamically loaded 2.7.8</p>
  </blockquote>
  
  <p>How can I fix it?</p>