error on initial login (fresh install)

[ann@…]

Installed trac/svn jumpbox - on initial visit to trac home page, clicked "login" link at top right, logged in with admin/pass and received login error as follows:

Oops… Trac detected an internal error:

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 406, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 184, in dispatch
    req.session = Session(self.env, req)
  File "/usr/lib/python2.4/site-packages/trac/web/session.py", line 52, in __init__
    self.promote_session(sid)
  File "/usr/lib/python2.4/site-packages/trac/web/session.py", line 147, in promote_session
    (self.req.authname, sid))
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.4/site-packages/trac/db/sqlite_backend.py", line 56, in execute
    args or [])
  File "/usr/lib/python2.4/site-packages/trac/db/sqlite_backend.py", line 48, in _rollback_on_error
    return function(self, *args, **kwargs)
OperationalError: columns sid, authenticated, name are not unique

[Emmanuel Blot]

Please report the version of Trac you are using.