Exception "KeyError: 'user'" thrown on startup

[gregbrowndev]

I'm trying to deploy the app locally but I am greeted by the error below when Django starts up:

$ docker-compose run app ./manage.py createsuperuser

Starting bookshelf_ws_1 ... done
Starting bookshelf_db_1 ... done
Traceback (most recent call last):
  File "./manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 328, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python3.8/site-packages/django/contrib/auth/management/commands/createsuperuser.py", line 79, in execute
    return super().execute(*args, **options)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 366, in execute
    self.check()
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 392, in check
    all_issues = self._run_checks(
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 382, in _run_checks
    return checks.run_checks(**kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/core/checks/registry.py", line 72, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/usr/local/lib/python3.8/site-packages/django/core/checks/urls.py", line 40, in check_url_namespaces_unique
    all_namespaces = _load_all_namespaces(resolver)
  File "/usr/local/lib/python3.8/site-packages/django/core/checks/urls.py", line 57, in _load_all_namespaces
    url_patterns = getattr(resolver, 'url_patterns', [])
  File "/usr/local/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.8/site-packages/django/urls/resolvers.py", line 588, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/usr/local/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.8/site-packages/django/urls/resolvers.py", line 581, in urlconf_module
    return import_module(self.urlconf_name)
  File "/usr/local/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/app/bookshelf/urls.py", line 11, in <module>
    from bookshelf import views
  File "/app/bookshelf/views/__init__.py", line 2, in <module>
    from .category_detail import CategoryDetailView
  File "/app/bookshelf/views/category_detail.py", line 4, in <module>
    from bookshelf.repositories import load_category
  File "/app/bookshelf/repositories/__init__.py", line 5, in <module>
    from .notification import create_notifications
  File "/app/bookshelf/repositories/notification.py", line 5, in <module>
    from .profile import config as profile_config
  File "/app/bookshelf/repositories/profile.py", line 20, in <module>
    mapper = Mapper(Profile, models.Profile, config,)
  File "/usr/local/lib/python3.8/site-packages/_mappers/factory.py", line 16, in mapper_factory
    iterable = _configure(entity, data_source, config)
  File "/usr/local/lib/python3.8/site-packages/_mappers/factory.py", line 54, in _configure
    mapping = _validate(dict(fields), data_source_fields, config, data_source)
  File "/usr/local/lib/python3.8/site-packages/_mappers/validation.py", line 15, in _validate
    _related_config_fields(data_source_fields, config)
  File "/usr/local/lib/python3.8/site-packages/_mappers/validation.py", line 98, in _related_config_fields
    _related_field_link(link_to[related])
KeyError: 'user'

[chapayevdauren]

seems to be duplicated issue https://github.com/dry-python/bookshelf/issues/86

[gregbrowndev]

@chapayevdauren you're right but it looks like a possible regression as that issue was fixed and closed

[chapayevdauren]

@gregbrowndev try to update mappers version, worked for me with commenting @mapper.reader property lines