relation "background_task" does not exist
After the 2nd step go to command line and do following :
1. python manage.py showmigrations (check if it works fine)
2. python manage.py migrate (check if the background task file is added to the show migrations list eg:
background_task
 [X] 0001_initial
 [X] 0002_auto_20170927_1109)
3. Now make modifications in your views in which ever way you want to use the backgroundtasks.
I'm trying to run some tasks in the background while running a django server. To do this, I'm using background-tasks library. I've followed the following steps:

pip install django-background-tasks
Added 'background_task', in INSTALLED_APPS in settings.py 
python manage.py makemigrations background_task

The problem arises in the 3rd step giving an error stating:

django.db.utils.ProgrammingError: relation "background_task" does not
  exist LINE 1: INSERT INTO "background_task" ("task_name",
  "task_params", "...

I've tried looking for other solutions but every one of them was the 3rd line. 
How should I proceed ?