title: CodeIgniter app shows 404 when moved to production
body: <p>I've finished developing an app using CodeIgniter in my local machine, and moved it to the production server (live site) yesterday.</p>
  
  <p>My problem is that when I load the site, it immediately shows me a "page not found" error (404). I'm 100% sure this has nothing to do with the server itself, since a clean CodeIgniter installation works perfectly fine.</p>
  
  <p>I've changed the settings in config.php and database.php to reflect the new environment so it's supposed to work. The log file isn't showing anything helpful (only that it can't find index_php after loading the URI library).</p>
  
  <p>Any idea how I can troubleshoot this?</p>
  
  <p>Your help is so much appreciated. </p>