Django; AWS Elastic Beanstalk ERROR: Your WSGIPath refers to a file that does not exist

I am using this tutorial: http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create-deploy-python-django.html

I create the .ebextensions directory inside the root directory, and put this django.config file in it:

option_settings:
  aws:elasticbeanstalk:container:python:
    WSGIPath: mysite/wsgi.py

I've also tried setting the path to mysite/mysite/wsgi.py because I saw that work somewhere but it did not help me.

Everywhere I look shows a different .config file with different arrangements, and I don't know where to go from here. How can I properly set my WSGIPath in Elastic Beanstalk?