Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Loader\Configurator\AbstractConfigurator' not found in /home/devmecseminars/public_html/mec/vendor/symfony/dependency-injection/Loader/Configurator/AbstractServiceConfigurator.php:17 Stack trace: #0 {main} thrown in /home/devmecseminars/public_html/mec/vendor/symfony/dependency-injection/Loader/Configurator/AbstractServiceConfigurator.php on line 17