title: Django Admin site TemplateSyntaxError at /admin/: name not defined
body: <p>I have an issue where, when I log in to the Django admin site, I get a template syntax error in /Library/Python/2.6/site-packages/django/template/debug.py in render_node, line 81.</p>
  
  <p>I can't find out how to solve this as it is part of Django, I didn't write the code and I have no idea how it works.</p>
  
  <p>This did work fine up until a few days ago when I last tried it.</p>
  
  <p>The error is:
  <code>
  Caught an exception while rendering: name 'pest' is not defined</code>
  Where pest is the name of my project. As far as I know, I have all the apps in my project installed correctly.</p>
  
  <p>Thanks in advance!</p>