When I tried to run my python django project in my environment using the command
python -m manage startapp product
it showed me this error
Traceback (most recent call last):
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 86, in _run_code
exec(code, run_globals)
File "C:\Users\ASHU\Desktop\Django Project API\project1_django\manage.py", line 22, in <module>
main()
File "C:\Users\ASHU\Desktop\Django Project API\project1_django\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\site-packages\django\core\management\__init__.py", line 446, in execute_from_command_line
utility.execute()
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\site-packages\django\core\management\__init__.py", line 420, in execute
django.setup()
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\site-packages\django\apps\registry.py", line 91, in populate
app_config = AppConfig.create(entry)
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\site-packages\django\apps\config.py", line 193, in create
import_module(entry)
File "C:\Users\ASHU\AppData\Local\Programs\Python\Python310\lib\importlib\__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'rest_framework'
I have already installed my Django rest framework inside my project using
pip3 install djangorestframework
Can anyone help me to reslove this error
when i try to start my Django project i get this error which i am unable to solve:
ModuleNotFoundError: No module named 'database'
The error stack:
Traceback (most recent call last):
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/management/base.py", line 414, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/management/base.py", line 455, in execute
self.check()
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/management/base.py", line 487, in check
all_issues = checks.run_checks(
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/checks/registry.py", line 88, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/checks/caches.py", line 17, in check_default_cache_is_configured
if DEFAULT_CACHE_ALIAS not in settings.CACHES:
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/conf/__init__.py", line 87, in __getattr__
self._setup(name)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/conf/__init__.py", line 74, in _setup
self._wrapped = Settings(settings_module)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/conf/__init__.py", line 183, in __init__
mod = importlib.import_module(self.SETTINGS_MODULE)
File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'database'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/olw/candidatis/database-rest/manage.py", line 22, in <module>
main()
File "/home/olw/candidatis/database-rest/manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 446, in execute_from_command_line
utility.execute()
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 440, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/core/management/base.py", line 427, in run_from_argv
connections.close_all()
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/db/utils.py", line 212, in close_all
for alias in self:
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/utils/connection.py", line 73, in __iter__
return iter(self.settings)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/utils/functional.py", line 49, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/utils/connection.py", line 45, in settings
self._settings = self.configure_settings(self._settings)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/db/utils.py", line 148, in configure_settings
databases = super().configure_settings(databases)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/utils/connection.py", line 50, in configure_settings
settings = getattr(django_settings, self.settings_name)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/conf/__init__.py", line 87, in __getattr__
self._setup(name)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/conf/__init__.py", line 74, in _setup
self._wrapped = Settings(settings_module)
File "/home/olw/candidatis/database-rest/venv/lib/python3.10/site-packages/django/conf/__init__.py", line 183, in __init__
mod = importlib.import_module(self.SETTINGS_MODULE)
File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'database'
I already tried to install the databases package (This is the recommended answer you almost find anywhere)
Trying to make sense out of the stack trace it seems that python itself cannot import this module (So there is no issue in my code or something...).
My installed packages:
The python version i am using is Python 3.10.5
Anybody any idea ?
UPDATE APPS LIST
Here is my installed apps list ->
INSTALLED_APPS = [
"django.contrib.admin",
"django.contrib.auth",
"django.contrib.contenttypes",
"django.contrib.sessions",
"django.contrib.messages",
"django.contrib.staticfiles",
"django.contrib.admindocs.urls",
"rest",
"rest_framework",
"custom_db_logger",
]
I am trying to run celery on a Django application that has dj-rest-auth already configured but, I get the following error when I run - "celery -A config worker -l info" but, it works perfectly fine without errors when I do "python manage.py runserver".
The application has several apps under the folder /apps and within the settings.py, it is imported as "apps.<app_name>". It does have an app called "users" so, it's imported as "apps.users".
Traceback (most recent call last):
File "/usr/local/bin/celery", line 8, in <module>
sys.exit(main())
File "/usr/local/lib/python3.10/site-packages/celery/__main__.py", line 15, in main
sys.exit(_main())
File "/usr/local/lib/python3.10/site-packages/celery/bin/celery.py", line 213, in main
return celery(auto_envvar_prefix="CELERY")
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1128, in __call__
return self.main(*args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1053, in main
rv = self.invoke(ctx)
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1659, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1395, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 754, in invoke
return __callback(*args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/click/decorators.py", line 26, in new_func
return f(get_current_context(), *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/celery/bin/base.py", line 134, in caller
return f(ctx, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/celery/bin/worker.py", line 343, in worker
worker = app.Worker(
File "/usr/local/lib/python3.10/site-packages/celery/worker/worker.py", line 94, in __init__
self.app.loader.init_worker()
File "/usr/local/lib/python3.10/site-packages/celery/loaders/base.py", line 111, in init_worker
self.import_default_modules()
File "/usr/local/lib/python3.10/site-packages/celery/loaders/base.py", line 105, in import_default_modules
raise response
File "/usr/local/lib/python3.10/site-packages/celery/utils/dispatch/signal.py", line 276, in send
response = receiver(signal=self, sender=sender, **named)
File "/usr/local/lib/python3.10/site-packages/celery/fixups/django.py", line 82, in on_import_modules
self.worker_fixup.validate_models()
File "/usr/local/lib/python3.10/site-packages/celery/fixups/django.py", line 121, in validate_models
run_checks()
File "/usr/local/lib/python3.10/site-packages/django/core/checks/registry.py", line 76, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/usr/local/lib/python3.10/site-packages/django/core/checks/urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "/usr/local/lib/python3.10/site-packages/django/core/checks/urls.py", line 23, in check_resolver
return check_method()
File "/usr/local/lib/python3.10/site-packages/django/urls/resolvers.py", line 412, in check
for pattern in self.url_patterns:
File "/usr/local/lib/python3.10/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/usr/local/lib/python3.10/site-packages/django/urls/resolvers.py", line 598, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/usr/local/lib/python3.10/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/usr/local/lib/python3.10/site-packages/django/urls/resolvers.py", line 591, in urlconf_module
return import_module(self.urlconf_name)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/app/config/urls.py", line 13, in <module>
path("api/v1/auth/", include("dj_rest_auth.urls")),
File "/usr/local/lib/python3.10/site-packages/django/urls/conf.py", line 34, in include
urlconf_module = import_module(urlconf_module)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/urls.py", line 4, in <module>
from dj_rest_auth.views import (
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/views.py", line 16, in <module>
from .app_settings import (
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/app_settings.py", line 35, in <module>
UserDetailsSerializer = import_callable(serializers.get('USER_DETAILS_SERIALIZER', DefaultUserDetailsSerializer))
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/utils.py", line 12, in import_callable
return getattr(import_module(package), attr)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named 'users'
root#1a45d3d56ced:/app# celery -A config worker -l info
DEBUG 2021-12-09 11:36:44,651 base 132 140186677212992 Configuring Raven for host: None
INFO 2021-12-09 11:36:44,652 base 132 140186677212992 Raven is not configured (logging is disabled). Please see the documentation for more information.
Traceback (most recent call last):
File "/usr/local/bin/celery", line 8, in <module>
sys.exit(main())
File "/usr/local/lib/python3.10/site-packages/celery/__main__.py", line 15, in main
sys.exit(_main())
File "/usr/local/lib/python3.10/site-packages/celery/bin/celery.py", line 213, in main
return celery(auto_envvar_prefix="CELERY")
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1128, in __call__
return self.main(*args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1053, in main
rv = self.invoke(ctx)
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1659, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 1395, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/lib/python3.10/site-packages/click/core.py", line 754, in invoke
return __callback(*args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/click/decorators.py", line 26, in new_func
return f(get_current_context(), *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/celery/bin/base.py", line 134, in caller
return f(ctx, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/celery/bin/worker.py", line 343, in worker
worker = app.Worker(
File "/usr/local/lib/python3.10/site-packages/celery/worker/worker.py", line 94, in __init__
self.app.loader.init_worker()
File "/usr/local/lib/python3.10/site-packages/celery/loaders/base.py", line 111, in init_worker
self.import_default_modules()
File "/usr/local/lib/python3.10/site-packages/celery/loaders/base.py", line 105, in import_default_modules
raise response
File "/usr/local/lib/python3.10/site-packages/celery/utils/dispatch/signal.py", line 276, in send
response = receiver(signal=self, sender=sender, **named)
File "/usr/local/lib/python3.10/site-packages/celery/fixups/django.py", line 82, in on_import_modules
self.worker_fixup.validate_models()
File "/usr/local/lib/python3.10/site-packages/celery/fixups/django.py", line 121, in validate_models
run_checks()
File "/usr/local/lib/python3.10/site-packages/django/core/checks/registry.py", line 76, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/usr/local/lib/python3.10/site-packages/django/core/checks/urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "/usr/local/lib/python3.10/site-packages/django/core/checks/urls.py", line 23, in check_resolver
return check_method()
File "/usr/local/lib/python3.10/site-packages/django/urls/resolvers.py", line 412, in check
for pattern in self.url_patterns:
File "/usr/local/lib/python3.10/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/usr/local/lib/python3.10/site-packages/django/urls/resolvers.py", line 598, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/usr/local/lib/python3.10/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/usr/local/lib/python3.10/site-packages/django/urls/resolvers.py", line 591, in urlconf_module
return import_module(self.urlconf_name)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/app/config/urls.py", line 13, in <module>
path("api/v1/auth/", include("dj_rest_auth.urls")),
File "/usr/local/lib/python3.10/site-packages/django/urls/conf.py", line 34, in include
urlconf_module = import_module(urlconf_module)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/urls.py", line 4, in <module>
from dj_rest_auth.views import (
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/views.py", line 16, in <module>
from .app_settings import (
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/app_settings.py", line 35, in <module>
UserDetailsSerializer = import_callable(serializers.get('USER_DETAILS_SERIALIZER', DefaultUserDetailsSerializer))
File "/usr/local/lib/python3.10/site-packages/dj_rest_auth/utils.py", line 12, in import_callable
return getattr(import_module(package), attr)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named 'users'
We faced the same problem. The imports in this case include the module specification strings from settings.py, not just the import statements at the top of the modules. In our case this was the fix
REST_AUTH_SERIALIZERS = {
- "LOGIN_SERIALIZER": "users.api.serializers.LoginSerializer",
+ "LOGIN_SERIALIZER": "<app_name>.users.api.serializers.LoginSerializer",
}
Python 3.8.10, django version 3.2.9. When I am running the following code: "python3 manage.py makemigrations auth_app" ... I get this error: TypeError: init() missing 1 required positional argument: 'to'.
I've checked out everything that says the error and still get the same.This is the whole error message.
Traceback (most recent call last):
File "manage.py", line 22, in <module>
main()
File "manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/home/allfsr/.local/lib/python3.8/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
utility.execute()
File "/home/allfsr/.local/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
django.setup()
File "/home/allfsr/.local/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/home/allfsr/.local/lib/python3.8/site-packages/django/apps/registry.py", line 114, in populate
app_config.import_models()
File "/home/allfsr/.local/lib/python3.8/site-packages/django/apps/config.py", line 301, in import_models
self.models_module = import_module(models_module_name)
File "/usr/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 848, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/allfsr/Documents/C4_WD/BANK/backend_auth/auth_app/models/__init__.py", line 1, in <module>
from .account import Account
File "/home/allfsr/Documents/C4_WD/BANK/backend_auth/auth_app/models/account.py", line 4, in <module>
class Account(models.Model):
File "/home/allfsr/Documents/C4_WD/BANK/backend_auth/auth_app/models/account.py", line 6, in Account
user = models.ForeignKey(related_name='account', on_delete= models.CASCADE)
TypeError: __init__() missing 1 required positional argument: 'to'
When running the final command which is sudo waagent –force -deprovision after preparing a Debian VHD for Kali but it keeps finishing with the below messages:
Traceback (most recent call last):
File "/usr/sbin/waagent", line 33, in <module>
sys.exit(load_entry_point('WALinuxAgent==2.2.47', 'console_scripts', 'waagent')())
File "/usr/sbin/waagent", line 25, in importlib_load_entry_point
return next(matches).load()
File "/usr/lib/python3.9/importlib/metadata.py", line 77, in load
module = import_module(match.group('module'))
File "/usr/lib/python3.9/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in load_unlocked
File "<frozen importlib.bootstrap_external>", line 790, in exec_module
File "<frozen importlib.bootstrap>", line 228, in call_with_frames_removed
File "/usr/lib/python3/dist-packages/azurelinuxagent/agent.py", line 34, in <module>
import azurelinuxagent.common.event as event
File "/usr/lib/python3/dist-packages/azurelinuxagent/common/event.py", line 632, in <module>
event_logger = EventLogger()
File "/usr/lib/python3/dist-packages/azurelinuxagent/common/event.py", line 304, in init
osutil = get_osutil()
File "/usr/lib/python3/dist-packages/azurelinuxagent/common/osutil/factory.py", line 50, in get_osutil
return _get_osutil(distro_name, distro_code_name, distro_version, distro_full_name)
File "/usr/lib/python3/dist-packages/azurelinuxagent/common/osutil/factory.py", line 79, in _get_osutil
return DebianOSBaseUtil()
NameError: name 'DebianOSBaseUtil' is not defined`
The deployment fails in Azure and I think this may be apart of that issue. I have reviewed their documentation and seen users having the same issue. Anyone ever faced this issue?
The original document in question that was used is this: https://learn.microsoft.com/en-us/azure/virtual-machines/linux/debian-create-upload-vhd
It looks like there is an error in the factory.py file.
try changing line 25 to add ", DebianOSBaseUtil" to the end of the import statement.