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