Migration Error

[rickmutua]

Am encountering the following issue when trying to migrate:

(virtual) erick@rick:~/Documents/personal projects/gift a box$ ./manage.py migrate Traceback (most recent call last): File "./manage.py", line 15, in <module> execute_from_command_line(sys.argv) File "/home/erick/Documents/personal projects/gift a box/virtual/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line utility.execute() File "/home/erick/Documents/personal projects/gift a box/virtual/lib/python3.6/site-packages/django/core/management/__init__.py", line 347, in execute django.setup() File "/home/erick/Documents/personal projects/gift a box/virtual/lib/python3.6/site-packages/django/__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "/home/erick/Documents/personal projects/gift a box/virtual/lib/python3.6/site-packages/django/apps/registry.py", line 112, in populate app_config.import_models() File "/home/erick/Documents/personal projects/gift a box/virtual/lib/python3.6/site-packages/django/apps/config.py", line 198, in import_models self.models_module = import_module(models_module_name) File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 994, in _gcd_import File "<frozen importlib._bootstrap>", line 971, in _find_and_load File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 665, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 678, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/home/erick/Documents/personal projects/gift a box/virtual/lib/python3.6/site-packages/cart/models.py", line 26, in <module> class Item(models.Model): File "/home/erick/Documents/personal projects/gift a box/virtual/lib/python3.6/site-packages/cart/models.py", line 27, in Item cart = models.ForeignKey(Cart, verbose_name=_('cart')) TypeError: __init__() missing 1 required positional argument: 'on_delete'

[ansuman13]

Did you solve this ? my guess is that problem is with django version. i used django 1.11 and it worked well.
see this :63818a8

[nortigo]

Since django 2+, you need to add on_delete for every foreignkey : https://docs.djangoproject.com/en/2.0/ref/models/fields/#foreignkey

[Anirudh-M-C]

problem with the definition of a ForeignKey field

code:
from django.db import models
from django.utils.translation import gettext_lazy as _

from .cart import Cart

class Item(models.Model):
cart = models.ForeignKey(Cart, verbose_name=_('cart'), on_delete=models.CASCADE)