Fatal error: Uncaught Error: Class "Symfony\Component\Config\Util\Exception\XmlParsingException" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\config\Util\Exception\InvalidXmlException.php:19 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\config\Util\Exception\InvalidXmlException.php on line 19