$ python3 manage.py makemigrations $ python3 manage.py migrate
//to create migration files python manage.py makemigrations //to migrate migration files python manage.py migrate
$ python manage.py makemigrations && python manage.py migrate $ git add --all $ git commit -m "fixed migrate error" $ git push heroku master $ heroku run python manage.py makemigrations $ heroku run python manage.py migrate --- Done ___
