File "/home/ibegin/iplatform/iplatform/templates/base/directory/category.html", line 1, in top-level template code
    {% extends "bone/bone.html" %}

  File "/usr/local/lib/python2.6/dist-packages/Jinja2-2.1.1-py2.6-linux-x86_64.egg/jinja2/environment.py", line 494, in get_template
    template = self.cache.get(name)

  File "/usr/local/lib/python2.6/dist-packages/Jinja2-2.1.1-py2.6-linux-x86_64.egg/jinja2/utils.py", line 547, in get
    return self[key]

  File "/usr/local/lib/python2.6/dist-packages/Jinja2-2.1.1-py2.6-linux-x86_64.egg/jinja2/utils.py", line 592, in __getitem__
    self._remove(key)

ValueError: deque.remove(x): x not in deque