Fatal error: Uncaught Error: Interface 'Nelmio\ApiDocBundle\Describer\DescriberInterface' not found in /home/users/00/3c/21/home/www/vendor/nelmio/api-doc-bundle/Describer/ExternalDocDescriber.php:16 Stack trace: #0 {main} thrown in /home/users/00/3c/21/home/www/vendor/nelmio/api-doc-bundle/Describer/ExternalDocDescriber.php on line 16