Trac does not work well with SVN.

[anonymous]

Trac does not work well with SVN. The SVN version is 1.4.3.

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 191, in dispatch
    chosen_handler = self._pre_process_request(req, chosen_handler)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 263, in _pre_process_request
    chosen_handler = f.pre_process_request(req, chosen_handler)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/api.py", line 73, in pre_process_request
    self.get_repository(req.authname) # triggers a sync if applicable
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/api.py", line 91, in get_repository
    raise TracError('Unsupported version control system "%s"'
TracError: Unsupported version control system "svn"

[Alec Thomas]

As mentioned in the giant red newticket box, ask support questions on the IrcChannel or MailingList.

[Emmanuel Blot]

As athomas said, this is an installation issue that has been addressed many times. You can search for duplicate in the ticket database, or the MailingList archives to find answers about this issue. Search for "Unsupported version control system".