django-rest-swagger returns with Internal Server Error

Question

I am making one API resource and I thought to use django-rest-swagger for this and I have done all the steps as provided in the django-rest-swagger documentation

After I tried the url http://localhost:8000/docs/ and I am unable to open and view my APIs. The error screenshot is attached below. If anyone has encountered it before please help me out.

Answer 1

The error was due to old fields from the database which solved this question.