Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Util\Exception\XmlParsingException' not found in D:\workspaces\liZiPingBack\vendor\symfony\config\Util\Exception\InvalidXmlException.php:20 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\config\Util\Exception\InvalidXmlException.php on line 20