TypeError: 'NoneType' object is unsubscriptable

[admin]

How to Reproduce

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

(please provide additional details here)

Request parameters:

{}

User agent: Mozilla/5.0 (Windows NT 5.1; rv:12.0) Gecko/20100101 Firefox/12.0

System Information

Trac	0.12
Babel	0.9.6
Genshi	0.6
MySQL	server: "5.1.52", client: "5.1.52", thread-safe: 1
MySQLdb	1.2.3
Pygments	1.1.1
Python	2.6.6 (r266:84292, Dec 7 2011, 20:38:36) [GCC 4.4.6 20110731 (Red Hat 4.4.6-3)]
pytz	2010h
setuptools	0.6
Subversion	1.6.11 (r934486)
Subversion	1.6.11 (r934486)
jQuery	1.4.2

Enabled Plugins

svnsyncplugin

0.1.2

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/Trac-0.12-py2.6.egg/trac/web/main.py", line 513, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.6/site-packages/Trac-0.12-py2.6.egg/trac/web/main.py", line 200, in dispatch
    chosen_handler)
  File "/usr/lib/python2.6/site-packages/Trac-0.12-py2.6.egg/trac/web/main.py", line 346, in _pre_process_request
    chosen_handler = filter_.pre_process_request(req, chosen_handler)
  File "/usr/lib/python2.6/site-packages/Trac-0.12-py2.6.egg/trac/versioncontrol/api.py", line 330, in pre_process_request
    repo = self.get_repository(reponame)
  File "/usr/lib/python2.6/site-packages/Trac-0.12-py2.6.egg/trac/versioncontrol/api.py", line 526, in get_repository
    repos = connector.get_repository(rtype, rdir, repoinfo.copy())
  File "/usr/lib/python2.6/site-packages/svnsyncplugin-0.1.2-py2.6.egg/svnsyncplugin/svnsyncplugin.py", line 37, in get_repository
    repos = SubversionRepository(repos_dir, None, self.log)
  File "/usr/lib/python2.6/site-packages/Trac-0.12-py2.6.egg/trac/versioncontrol/svn_fs.py", line 344, in __init__
    Repository.__init__(self, name, params, log)
  File "/usr/lib/python2.6/site-packages/Trac-0.12-py2.6.egg/trac/versioncontrol/api.py", line 730, in __init__
    self.reponame = params['name']
TypeError: 'NoneType' object is unsubscriptable