Unsupported version control system .. help

[sandmhan@…]

I have the follwing setup.

RHEL 4 PPC
neon-0.26.1
httpd-2.2.4
apr-1.2.8
apr-util-1.2.8
subversion-1.4.3
trac-0.10.3.1

Oops… Trac detected an internal error: If you think this really should work and you can reproduce it, you should consider reporting this problem to the Trac team. Go to ​http://trac.edgewall.org/ and create a new ticket where you describe the problem, how to reproduce it. Don't forget to include the Python traceback found below. TracGuide — The Trac User and Administration Guide Python Traceback

Traceback (most recent call last):
  File "/opt/svn_trac_httpd/lib/python2.3/site-packages/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/opt/svn_trac_httpd/lib/python2.3/site-packages/trac/web/main.py", line 191, in dispatch
    chosen_handler = self._pre_process_request(req, chosen_handler)
  File "/opt/svn_trac_httpd/lib/python2.3/site-packages/trac/web/main.py", line 263, in _pre_process_request
    chosen_handler = f.pre_process_request(req, chosen_handler)
  File "/opt/svn_trac_httpd/lib/python2.3/site-packages/trac/versioncontrol/api.py", line 73, in pre_process_request
    self.get_repository(req.authname) # triggers a sync if applicable
  File "/opt/svn_trac_httpd/lib/python2.3/site-packages/trac/versioncontrol/api.py", line 91, in get_repository
    raise TracError('Unsupported version control system "%s"'
TracError: Unsupported version control system "svn"

[Emmanuel Blot]

This is an installation issue. As stated in the big red box, please ask for support on the MailingList, and/or search the MailingList archive or duplicate tickets in the database (as this is a very common error message when installing Trac)