title: CodeIgniter: "Unable to load the requested class"
body: <p>On my WAMP box, I did the following:</p>
  
  <ol>
  <li>Added a file called /application/libraries/Foo.php</li>
  <li>Foo.php is a class, and it's name is <code>Foo</code></li>
  <li>In /application/config/autoload.php, I added <code>$autoload['libraries'] = array('foo');</code></li>
  </ol>
  
  <p>Everything works fine. When I upload to my LAMP box, I get the following error:</p>
  
  <p><code>Unable to load the requested class: foo</code></p>
  
  <p>Permission of /application/libraries/Foo.php is 0755. Owner is the same as the rest of the CI files. Taking <code>foo</code> out from autoload makes the problem go away.</p>
  
  <p>Any ideas what might be wrong?</p>