Internal error attempting to display http://www.dsource.org/projects/poseidon/ in Firefox 2.0.0.1

[mc.deaver@…]

If I attempt to display the web page at ​http://www.dsource.org/projects/poseidon/ the error occurs. Here's the Python traceback:

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 451, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 206, in dispatch
    chosen_handler = self._pre_process_request(req, chosen_handler)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 291, 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 101, in get_repository
    repos = self._connector.get_repository(rtype, rdir, authname)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/svn_fs.py", line 260, in get_repository
    crepos = CachedRepository(self.env.get_db_cnx(), repos, None, self.log)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/cache.py", line 34, in __init__
    self.sync()
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/cache.py", line 100, in sync
    (str(current_rev), path, kind, action,
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
IntegrityError: duplicate key violates unique constraint "node_change_pk"

[Matthew Good]

This has already been reported in #4631 which is itself a duplicate of the issue in #4043.

While the error message does mention reporting a bug in Trac it's usually best to contact the maintainer of the site so that they are aware of the problem.