Swagger schema validation failed

http://localhost:3000/swagger/ do not output models. Swagger preview add-on log an error:
```
Swagger schema validation failed. 
  Additional properties not allowed: consumes at #/
  Additional properties not allowed: produces at #/
  Additional properties not allowed: definitions at #/
 
JSON_OBJECT_VALIDATION_FAILED
```

Great video & article.
Cheers for Cosmo!