CODEWITHSUNDEEP
pythondjangopython-3.xmigration
A. White
A. White

Reputation: 27

How to resolve this python migration error

Newbie Python and Django coder

I am trying to apply some migration files necessary for a registration plugin (django-registration-redux==1.3). However when I run the python manage.py migrate command, I receive the following error 

Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "//Projects/hellowebapp/venv/lib/python3.7/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
    utility.execute()
  File "//Projects/hellowebapp/venv/lib/python3.7/site-packages/django/core/management/__init__.py", line 347, in execute
    django.setup()
  File "//Projects/hellowebapp/venv/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "//Projects/hellowebapp/venv/lib/python3.7/site-packages/django/apps/registry.py", line 112, in populate
    app_config.import_models()
  File "//Projects/hellowebapp/venv/lib/python3.7/site-packages/django/apps/config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "//Projects/hellowebapp/venv/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "//Projects/hellowebapp/venv/lib/python3.7/site-packages/registration/models.py", line 206, in <module>
    class RegistrationProfile(models.Model):
  File "//Projects/hellowebapp/venv/lib/python3.7/site-packages/registration/models.py", line 222, in RegistrationProfile
    user = models.OneToOneField(UserModelString(), verbose_name=_('user'))
TypeError: __init__() missing 1 required positional argument: 'on_delete'

Not sure how to resolve this error or fully understand what it is saying.

Upvotes: 0

Views: 88

Answers (1)

joshdrumz
joshdrumz

Reputation: 26

After a quick look at the django-registration-redux docs (https://django-registration-redux.readthedocs.io/en/latest/quickstart.html), for one I would recommend updating to the latest version of this package, which is 2.5. The problem I find most of the time with this type of error has to do with the django settings, i.e. if the correct middleware was added, INSTALLED_APPS, etc. I hope I could help.

Upvotes: 1

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