Fatal error: Uncaught Error: Interface "Masterminds\HTML5\Serializer\RulesInterface" not found in /home/blacksilzu/symfony/my_project_dir/vendor/masterminds/html5/src/HTML5/Serializer/OutputRules.php:17 Stack trace: #0 {main} thrown in /home/blacksilzu/symfony/my_project_dir/vendor/masterminds/html5/src/HTML5/Serializer/OutputRules.php on line 17