Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /home/ntpcbgtpp/public_html/mat1/vendor/nelmio/security-bundle/src/DependencyInjection/NelmioSecurityExtension.php:25 Stack trace: #0 {main} thrown in /home/ntpcbgtpp/public_html/mat1/vendor/nelmio/security-bundle/src/DependencyInjection/NelmioSecurityExtension.php on line 25