Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\ServiceLocator' not found in /home/benjamincb/demos/acdg-site/vendor/symfony/dependency-injection/Argument/ServiceLocator.php:21 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/symfony/dependency-injection/Argument/ServiceLocator.php on line 21