title: Could not load database driver mysqli! on opencart
body: <p>I have downloaded opencart 2.0 yesterday for testing it and after I installed vqmod latest 2.4.1 I started receiving the error Error: Could not load database driver mysqli!. I searched regarding this error and found something related to the leading slash, but after I got an error like 'Notice: Error: Could not load class Config.php!'. Current config.php</p>
  
  <pre><code>define('HTTP_SERVER', 'http://localhost/opencart/affiliate-payments/');
  
  // HTTPS
  define('HTTPS_SERVER', 'http://localhost/opencart/affiliate-payments/');
  
  // DIR
  define('DIR_APPLICATION', 'F:/SERVER/htdocs/opencart/affiliate-payments/catalog/');
  define('DIR_SYSTEM', 'F:/SERVER/htdocs/opencart/affiliate-payments/system/');
  define('DIR_LANGUAGE', 'F:/SERVER/htdocs/opencart/affiliate-payments/catalog/language/');
  define('DIR_TEMPLATE', 'F:/SERVER/htdocs/opencart/affiliate-payments/catalog/view/theme/');
  define('DIR_CONFIG', 'F:/SERVER/htdocs/opencart/affiliate-payments/system/config/');
  define('DIR_IMAGE', 'F:/SERVER/htdocs/opencart/affiliate-payments/image/');
  define('DIR_CACHE', 'F:/SERVER/htdocs/opencart/affiliate-payments/system/cache/');
  define('DIR_DOWNLOAD', 'F:/SERVER/htdocs/opencart/affiliate-payments/system/download/');
  define('DIR_MODIFICATION', 'F:/SERVER/htdocs/opencart/affiliate-payments/system/modification/');
  define('DIR_LOGS', 'F:/SERVER/htdocs/opencart/affiliate-payments/system/logs/');
  </code></pre>
  
  <p>In the current configuration I get <code>Error: Could not load database driver mysqli!</code></p>
  
  <p>If I remove also the slash, like if I remove entirely <code>F:/SERVER/htdocs/opencart/affiliate-payments/</code>
  I get same error <code>Error: Could not load database driver mysqli!</code></p>
  
  <p>if I remove <code>F:/SERVER/htdocs/opencart/affiliate-payments</code> I get <code>Notice: Error: Could not load class Config.php! in F:\SERVER\htdocs\opencart\affiliate-payments\system\startup.php on line 74</code></p>