title: file_exists(): Unable to find the wrapper "sftp" - did you forget to enable it when you configured PHP?
body: <p>This is the error I get on a fresh Ubuntu Server 14.04 install.</p>
  
  <p>A PHP Error was encountered</p>
  
  <pre><code>Severity: Warning
  
  Message: file_exists(): Unable to find the wrapper "sftp" - did you forget to enable it when you configured PHP?
  
  Filename: libraries/Template.php
  
  Line Number: 2610
  </code></pre>