Django manage.py runserver throws ImportError: AdminMediaHandler

Django manage.py runserver throws ImportError: AdminMediaHandler

The Problem
When I run python manage.py runserver I get the error ImportError: cannot
import name AdminMediaHandler.
ex.
(venv)agconti@agconti-Inspiron-5520:~/my_dev/github/stamped/stamped_project$
python manage.py runserver
ImportError: cannot import name AdminMediaHandler
This just started to happen after I installed the
django-werkzeug-debugger-runserver.
Im using virtualenv. Here is what I have installed:
Django==1.5.2
Werkzeug==0.9.3
argparse==1.2.1
django-extensions==1.1.1
django-werkzeug-debugger-runserver==0.1.2
six==1.3.0
wsgiref==0.1.2
I'm not sure what could be causing the conflict. Any ideas?