Fatal error: Uncaught Error: Interface "IOAuth2GrantCode" not found in /home/gingerbrup/rappelapi/vendor/friendsofsymfony/oauth2-php/server/examples/mongo/lib/OAuth2StorageMongo.php:17 Stack trace: #0 /home/gingerbrup/rappelapi/vendor/friendsofsymfony/oauth2-php/server/examples/mongo/protected_resource.php(12): require() #1 {main} thrown in /home/gingerbrup/rappelapi/vendor/friendsofsymfony/oauth2-php/server/examples/mongo/lib/OAuth2StorageMongo.php on line 17