I solved the same problem with these steps :
- Delete your database (
db.sqlite3
in my case) in your project directory - Remove everything from
__pycache__
folder under your project subdirectory - For the application you are trying to fix, go to the folder and clear
migrations
and__pycache__
directories
When you are sure you have cleared all the above files, run:
python manage.py makemigrations python manage.py migrate
I hope this helps.
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