I created a virtual environment for my new project, installed django and started the new project. However, whenever i run a line of code with manage.py i get this long error
Make sure you really execute your command in the venv (you should see (venv))
If you are then as @iklinac said, this should fixe your issue:
'NAME': str(os.path.join(BASE_DIR, "db.sqlite3"))
It does seem NAME is being converted to pathlib.Path (WindowsPath) object instead of string which then cannot be used in Django in same way as os.path expects strings (Not 100% sure as did not investigate in depth)
So casting in string would be appropriate
'NAME': str(os.path.join(BASE_DIR, "db.sqlite3"))