Fatal error: Uncaught Error: Class 'Twig_Extension' not found in /home/lafaamicps/www/symfony/vendor/friendsofsymfony/comment-bundle/FOS/CommentBundle/Twig/CommentExtension.php:27 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/friendsofsymfony/comment-bundle/FOS/CommentBundle/Twig/CommentExtension.php on line 27