Reset SQLite database in Django

Delete database and delete migration files (.py and .pyc) in migrations directory of your app (don't delete __init__.py file). Then run python manage.py makemigrations app and python manage.py migrate.

For me, just

python manage.py flush

deleted old db contents, so i was able to create records anew in Django 2.1.4.

Don't forget to create new superuser:

python manage.py createsuperuser

I had the same issue, using Django 1.10, here is what I did, I deleted the database sqlite file, deleted the pycache folders inside each of the apps, deleted all files inside the migrations folder for each app , except the init.py file, and then ran python manage.py makemigrations and python manage.py migrate. Also note that because you deleted the database you will have to create a new superuser using python manage.py createsuperuser. Hope this helps