Environment:


Request Method: GET
Request URL: http://192.168.1.110:8000/admin/zinnia/

Django Version: 1.3.1
Python Version: 2.7.2
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.humanize',
 'django.contrib.markup',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.syndication',
 'django.contrib.comments',
 'cumulus',
 'cms',
 'cms_taggit',
 'mptt',
 'menus',
 'sekizai',
 'reversion',
 'cms.plugins.flash',
 'cms.plugins.googlemap',
 'cms.plugins.link',
 'cms.plugins.snippet',
 'cms.plugins.text',
 'cms.plugins.twitter',
 'cms.plugins.file',
 'cms.plugins.picture',
 'cms.plugins.teaser',
 'cms.plugins.video',
 'cmsplugin_contact',
 'tagging',
 'zinnia',
 'zinnia.plugins',
 'easy_thumbnails',
 'articles',
 'south',
 'social_auth',
 'residence',
 'debug_toolbar']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'debug_toolbar.middleware.DebugToolbarMiddleware',
 'cms.middleware.multilingual.MultilingualURLMiddleware',
 'cms.middleware.page.CurrentPageMiddleware',
 'cms.middleware.user.CurrentUserMiddleware',
 'cms.middleware.toolbar.ToolbarMiddleware')


Template error:
In template /home/tux/VirtualEnvs/NewAvenueEnv/src/django-blog-zinnia/zinnia/templates/admin/zinnia/widgets/content_stats.html, error at line 11
   Caught AssertionError while rendering: latest() requires either a field_name parameter or 'get_latest_by' in the model
   1 : {% extends "admin/zinnia/widgets/base.html" %}


   2 : {% load i18n zinnia_tags %}


   3 :


   4 : {% block module_id %}contents{% endblock %}


   5 :


   6 : {% block summary %}{% trans "Today" %}{% endblock %}


   7 :


   8 : {% block title %}{% trans "Today" %}{% endblock %}


   9 :


   10 : {% block content %}


   11 :    {% zinnia_statistics "admin/zinnia/widgets/_content_stats.html" %}


   12 : {% endblock %}


   13 :

Traceback:
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/contrib/admin/sites.py" in wrapper
  214.                 return self.admin_view(view, cacheable)(*args, **kwargs)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  93.                     response = view_func(request, *args, **kwargs)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  79.         response = view_func(request, *args, **kwargs)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner
  197.             return view(request, *args, **kwargs)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/contrib/admin/sites.py" in app_index
  427.             context_instance=context_instance
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/shortcuts/__init__.py" in render_to_response
  20.     return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader.py" in render_to_string
  188.         return t.render(context_instance)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  123.             return self._render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in _render
  117.         return self.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  127.         return compiled_parent._render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in _render
  117.         return self.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  127.         return compiled_parent._render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in _render
  117.         return self.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  127.         return compiled_parent._render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in _render
  117.         return self.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  127.         return compiled_parent._render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in _render
  117.         return self.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  64.             result = block.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  159.         return self.render_template(self.template, context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render_template
  141.         output = template.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  123.             return self._render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in _render
  117.         return self.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  127.         return compiled_parent._render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in _render
  117.         return self.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/loader_tags.py" in render
  64.             result = block.nodelist.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  744.                 bits.append(self.render_node(node, context))
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/debug.py" in render_node
  73.             result = node.render(context)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/template/base.py" in render
  921.                     dict = func(*args)
File "/home/tux/VirtualEnvs/NewAvenueEnv/src/django-blog-zinnia/zinnia/templatetags/zinnia_tags.py" in zinnia_statistics
  361.         last_entry = entries.latest()
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/db/models/manager.py" in latest
  162.         return self.get_query_set().latest(*args, **kwargs)
File "/home/tux/VirtualEnvs/NewAvenueEnv/lib/python2.7/site-packages/django/db/models/query.py" in latest
  401.         assert bool(latest_by), "latest() requires either a field_name parameter or 'get_latest_by' in the model"

Exception Type: TemplateSyntaxError at /admin/zinnia/
Exception Value: Caught AssertionError while rendering: latest() requires either a field_name parameter or 'get_latest_by' in the model