Traceback (most recent call last):
  File "manage.py", line 23, in <module>
    execute_from_command_line(sys.argv)
  File "mupienv/lib/python3.5/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "mupienv/lib/python3.5/site-packages/django/core/management/__init__.py", line 359, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "mupienv/lib/python3.5/site-packages/django/core/management/base.py", line 294, in run_from_argv
    self.execute(*args, **cmd_options)
  File "mupienv/lib/python3.5/site-packages/django/core/management/base.py", line 342, in execute
    self.check()
  File "mupienv/lib/python3.5/site-packages/django/core/management/base.py", line 374, in check
    include_deployment_checks=include_deployment_checks,
  File "mupienv/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 62, in _run_checks
    issues.extend(super(Command, self)._run_checks(**kwargs))
  File "mupienv/lib/python3.5/site-packages/django/core/management/base.py", line 361, in _run_checks
    return checks.run_checks(**kwargs)
  File "mupienv/lib/python3.5/site-packages/django/core/checks/registry.py", line 81, in run_checks
    new_errors = check(app_configs=app_configs)
  File "mupienv/lib/python3.5/site-packages/django/core/checks/urls.py", line 14, in check_url_config
    return check_resolver(resolver)
  File "mupienv/lib/python3.5/site-packages/django/core/checks/urls.py", line 24, in check_resolver
    for pattern in resolver.url_patterns:
  File "mupienv/lib/python3.5/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "mupienv/lib/python3.5/site-packages/django/urls/resolvers.py", line 313, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "mupienv/lib/python3.5/site-packages/django/utils/functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "mupienv/lib/python3.5/site-packages/django/urls/resolvers.py", line 306, in urlconf_module
    return import_module(self.urlconf_name)
  File "mupienv/lib/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 665, in exec_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "mupi_question_database/config/urls.py", line 31, in <module>
    url(r'^rest/', include('mupi_question_database.questions.urls', namespace='mupi_question_database')),
  File "mupienv/lib/python3.5/site-packages/django/conf/urls/__init__.py", line 50, in include
    urlconf_module = import_module(urlconf_module)
  File "mupienv/lib/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 665, in exec_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "mupi_question_database/mupi_question_database/questions/urls.py", line 9, in <module>
    from . import rest_views
  File "mupi_question_database/mupi_question_database/questions/rest_views.py", line 19, in <module>
    from . import serializers as serializers
  File "mupi_question_database/mupi_question_database/questions/serializers.py", line 14, in <module>
    from rest_auth import serializers as auth_serializers
  File "mupienv/lib/python3.5/site-packages/rest_auth/serializers.py", line 137, in <module>
    rest_auth_serializers.get('USER_DETAILS_SERIALIZER', UserDetailsSerializer)
  File "mupienv/lib/python3.5/site-packages/rest_auth/utils.py", line 11, in import_callable
    return getattr(import_module(package), attr)
AttributeError: module 'mupi_question_database.questions.serializers' has no attribute 'MPUserDetailsSerializer'