after installation on trac 0.11, i get it.
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/trac/web/api.py", line 367, in send_error
'text/html')
File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 708, in render_template
data = self.populate_data(req, data)
File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 618, in populate_data
d['chrome'].update(req.chrome)
File "/usr/lib/python2.4/site-packages/trac/web/api.py", line 194, in __getattr__
value = self.callbacks[name](self)
File "/usr/lib/python2.4/site-packages/trac/util/compat.py", line 133, in newfunc
return func_(*(args + fargs), **dict(kwargs, **fkwargs))
File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 476, in prepare_request
for category, name, text in contributor.get_navigation_items(req):
File "build/bdist.linux-x86_64/egg/tracdownloader/web_ui.py", line 53, in get_navigation_items
LookupError: unknown encoding: /projects/java/downloader