GitPlugin TypeError: 'NoneType' object is unsubscriptable

[james]

Current setup is Trac 0.11 running on Bitnami trac stack on Windows 64bit. I have git installed and setup to point to c:/Git/bin/git.exe (avoiding the path " " issue). However when leaving enabled I'm getting this error and the warning 'Warning: Error with navigation contributor "BrowserModule"' and "GitPlugin TypeError: 'NoneType' object is unsubscriptable".

Anyone know why? I haven't done anything weird I don't think that would cause this to happen.

How to Reproduce

While doing a GET operation on /report/8, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'id': u'8'}

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5

System Information

Trac	0.12.3
Babel	0.9.5
Genshi	0.6
GIT	1.7.10.msysgit.1
mod_wsgi	3.3 (WSGIProcessGroup WSGIApplicationGroup %{GLOBAL})
pysqlite	2.6.0
Python	2.6.2 (r262:71605, Apr 14 2009, 22:40:02) [MSC v.1500 32 bit (Intel)]
setuptools	0.6c11
SQLite	3.6.2
Subversion	1.6.15 (r1038135)
jQuery	1.4.4

Enabled Plugins

tracaccountmanager	0.3.2
tracgit	0.11.0.2

Python Traceback

Traceback (most recent call last):
  File "build\bdist.win32\egg\trac\web\main.py", line 522, in _dispatch_request
    dispatcher.dispatch(req)
  File "build\bdist.win32\egg\trac\web\main.py", line 208, in dispatch
    chosen_handler)
  File "build\bdist.win32\egg\trac\web\main.py", line 350, in _pre_process_request
    chosen_handler = filter_.pre_process_request(req, chosen_handler)
  File "build\bdist.win32\egg\trac\versioncontrol\api.py", line 330, in pre_process_request
    repo = self.get_repository(reponame)
  File "build\bdist.win32\egg\trac\versioncontrol\api.py", line 538, in get_repository
    repos = connector.get_repository(rtype, rdir, repoinfo.copy())
  File "build\bdist.win32\egg\tracext\git\git_fs.py", line 162, in get_repository
    shortrev_len=self._shortrev_len)
  File "build\bdist.win32\egg\tracext\git\git_fs.py", line 180, in __init__
    Repository.__init__(self, "git:"+path, None, log)
  File "build\bdist.win32\egg\trac\versioncontrol\api.py", line 744, in __init__
    self.reponame = params['name']
TypeError: 'NoneType' object is unsubscriptable

[anonymous]

a duplicate of #8465.