AttributeError: Cannot find an implementation of the "IRequestHandler" interface named "WikiModule". Please update the option trac.default_handler in trac.ini.

[administrateur@…]

How to Reproduce

While doing a GET operation on /, Trac issued an internal error.

(please provide additional details here)

User Agent was: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1

System Information

Trac	0.11.1
Python	2.5.2 (r252:60911, Aug 8 2008, 09:38:22) [GCC 4.3.1]
setuptools	0.6c8
SQLite	3.5.9
pysqlite	2.4.1
Genshi	0.5
mod_python	3.3.1
Pygments	0.10
jQuery:	1.2.6

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/trac/web/main.py", line 423, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.5/site-packages/trac/web/main.py", line 169, in dispatch
    chosen_handler = self.default_handler
  File "/usr/lib/python2.5/site-packages/trac/config.py", line 466, in __get__
    self.section, self.name))
AttributeError: Cannot find an implementation of the "IRequestHandler" interface named "WikiModule".  Please update the option trac.default_handler in trac.ini.

[ebray]

Sounds like a broken Trac installation…

[goldyfruit]

Hum, but i just restart the server !! Before it workded fine, i'll try to create a new Trac environement.

Thanks.

[anonymous]

Check to make sure you do not have

trac.wiki.web_ui.wikimodule = disabled

in your trac.ini file. (This is part of TagsPlugin)

[anonymous]

see also the ​comments

• remove default_handler = TagsWikiModule if it exists in the [trac] section
• and remove trac.wiki.web_ui.wikimodule = disabled

[Remy Blank]

This is certainly an InstallationIssue.