Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Core\User\UserInterface" not found in /home/iotechtniu/ioacademy/vendor/knpuniversity/oauth2-client-bundle/src/Security/User/OAuthUser.php:15 Stack trace: #0 {main} thrown in /home/iotechtniu/ioacademy/vendor/knpuniversity/oauth2-client-bundle/src/Security/User/OAuthUser.php on line 15