Fatal error: Uncaught Error: Class "Symfony\Component\Config\Loader\FileLoader" not found in T:\Xampp\htdocs\notice\vendor\symfony\routing\Loader\XmlFileLoader.php:28 Stack trace: #0 {main} thrown in T:\Xampp\htdocs\notice\vendor\symfony\routing\Loader\XmlFileLoader.php on line 28