Exception Value: Invalid template library specified. ImportError raised when trying to load 'treebeard.templatetags.admin_tree': No module named 'django.contrib.admin.util'

[Yongjun Cho]

Environment:

Request Method: GET

Request URL: http://127.0.0.1:8000/ko/

Django Version: 1.9

Python Version: 3.4.3

Installed Applications:

['django.contrib.auth',

 'django.contrib.contenttypes',

 'django.contrib.sessions',

 'django.contrib.sites',

 'django.contrib.messages',

 'django.contrib.admin',

 'django.contrib.flatpages',

 'django.contrib.staticfiles',

 'django.contrib.sitemaps',

 'django_extensions',

 'debug_toolbar',

 'apps.gateway',

 'widget_tweaks',

 'oscar',

 'oscar.apps.analytics',

 'oscar.apps.checkout',

 'oscar.apps.address',

 'oscar.apps.shipping',

 'oscar.apps.catalogue',

 'oscar.apps.catalogue.reviews',

 'oscar.apps.partner',

 'oscar.apps.basket',

 'oscar.apps.payment',

 'oscar.apps.offer',

 'oscar.apps.order',

 'oscar.apps.customer',

 'oscar.apps.promotions',

 'oscar.apps.search',

 'oscar.apps.voucher',

 'oscar.apps.wishlists',

 'oscar.apps.dashboard',

 'oscar.apps.dashboard.reports',

 'oscar.apps.dashboard.users',

 'oscar.apps.dashboard.orders',

 'oscar.apps.dashboard.promotions',

 'oscar.apps.dashboard.catalogue',

 'oscar.apps.dashboard.offers',

 'oscar.apps.dashboard.partners',

 'oscar.apps.dashboard.pages',

 'oscar.apps.dashboard.ranges',

 'oscar.apps.dashboard.reviews',

 'oscar.apps.dashboard.vouchers',

 'oscar.apps.dashboard.communications',

 'oscar.apps.dashboard.shipping',

 'haystack',

 'treebeard',

 'sorl.thumbnail',

 'django_tables2']

Installed Middleware:

('django.contrib.sessions.middleware.SessionMiddleware',

 'django.middleware.csrf.CsrfViewMiddleware',

 'django.contrib.auth.middleware.AuthenticationMiddleware',

 'django.contrib.messages.middleware.MessageMiddleware',

 'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware',

 'django.middleware.locale.LocaleMiddleware',

 'django.middleware.common.CommonMiddleware',

 'oscar.apps.basket.middleware.BasketMiddleware')

Traceback:

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/utils.py" in __getitem__

  86.             return self._engines[alias]

During handling of the above exception ('django'), another exception occurred:

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/backends/django.py" in get_package_libraries

  144.             module = import_module(entry[1])

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/importlib/__init__.py" in import_module

  109.     return _bootstrap._gcd_import(name[level:], package, level)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/treebeard/templatetags/admin_tree.py" in <module>

  15. from django.contrib.admin.util import lookup_field, display_for_field

During handling of the above exception (No module named 'django.contrib.admin.util'), another exception occurred:

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/core/handlers/base.py" in get_response

  174.                     response = self.process_exception_by_middleware(e, request)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/core/handlers/base.py" in get_response

  172.                     response = response.render()

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/response.py" in render

  160.             self.content = self.rendered_content

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/response.py" in rendered_content

  135.         template = self._resolve_template(self.template_name)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/response.py" in _resolve_template

  90.         new_template = self.resolve_template(template)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/response.py" in resolve_template

  80.             return select_template(template, using=self.using)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/loader.py" in select_template

  55.     engines = _engine_list(using)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/loader.py" in _engine_list

  143.     return engines.all() if using is None else [engines[using]]

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/utils.py" in all

  110.         return [self[alias] for alias in self]

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/utils.py" in <listcomp>

  110.         return [self[alias] for alias in self]

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/utils.py" in __getitem__

  101.             engine = engine_cls(params)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/backends/django.py" in __init__

  31.         options['libraries'] = self.get_templatetag_libraries(libraries)

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/backends/django.py" in get_templatetag_libraries

  49.         libraries = get_installed_libraries()

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/backends/django.py" in get_installed_libraries

  131.             for name in get_package_libraries(pkg):

File "/home/ubuntu/dev/django-oscar/oscar/lib/python3.4/site-packages/django/template/backends/django.py" in get_package_libraries

  148.                 "trying to load '%s': %s" % (entry[1], e)

Exception Type: InvalidTemplateLibrary at /ko/

Exception Value: Invalid template library specified. ImportError raised when trying to load 'treebeard.templatetags.admin_tree': No module named 'django.contrib.admin.util'

[vamsidhar...@brio.co.in]

I got the same error. Can you help me please, how did you resolve that.