Traceback (most recent call last):  
File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/web/api.py", line 339, in send_error
    'text/html')
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/web/chrome.py", line 684, in render_template
    data = self.populate_data(req, data)
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/web/chrome.py", line 592, in populate_data
    d['chrome'].update(req.chrome)
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/web/api.py", line 168, in __getattr__
    value = self.callbacks[name](self)
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/web/chrome.py", line 460, in prepare_request
    for category, name, text in contributor.get_navigation_items(req):
  File "build/bdist.linux-i686/egg/testManagementPlugin/testManager.py", line 60, in get_navigation_items
    --- line regested by the spam filter --- 
LookupError: unknown encoding: /trac/test/testmanagement/