Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in /home/steevedfem/ekolaweb/vendor/symfony/swiftmailer-bundle/DependencyInjection/SwiftmailerExtension.php:30 Stack trace: #0 {main} thrown in /home/steevedfem/ekolaweb/vendor/symfony/swiftmailer-bundle/DependencyInjection/SwiftmailerExtension.php on line 30