Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Definition' not found in /home/bucereo/my_project_name/vendor/symfony/assetic-bundle/DependencyInjection/DirectoryResourceDefinition.php:22 Stack trace: #0 {main} thrown in /home/bucereo/my_project_name/vendor/symfony/assetic-bundle/DependencyInjection/DirectoryResourceDefinition.php on line 22