Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Core\User\UserInterface" not found in /home/gingerbrup/rappelapi/vendor/friendsofsymfony/oauth-server-bundle/Tests/Functional/TestBundle/Entity/User.php:20 Stack trace: #0 {main} thrown in /home/gingerbrup/rappelapi/vendor/friendsofsymfony/oauth-server-bundle/Tests/Functional/TestBundle/Entity/User.php on line 20