Trac[main] ERROR: unsupported operand type(s) for -: 'int' and 'datetime.datetime'

[anonymous]

When trying to run the RevTree plugin, I get the following error (seems to be some sort of Trac internal error):

2008-01-31 16:19:27,723 Trac[main] ERROR: unsupported operand type(s) for -: 'int' and 'datetime.datetime'
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/Trac-0.11b1-py2.4.egg/trac/web/main.py", line 398, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/Trac-0.11b1-py2.4.egg/trac/web/main.py", line 195, in dispatch
    resp = chosen_handler.process_request(req)
  File "build/bdist.linux-i686/egg/revtree/web_ui.py", line 186, in process_request
  File "build/bdist.linux-i686/egg/revtree/web_ui.py", line 279, in _process_revtree
  File "build/bdist.linux-i686/egg/revtree/model.py", line 298, in build
  File "/usr/lib/python2.4/site-packages/Trac-0.11b1-py2.4.egg/trac/versioncontrol/cache.py", line 60, in get_changesets
    (to_timestamp(start), to_timestamp(stop)))
  File "/usr/lib/python2.4/site-packages/Trac-0.11b1-py2.4.egg/trac/util/datefmt.py", line 55, in to_timestamp
    diff = dt - _epoc
TypeError: unsupported operand type(s) for -: 'int' and 'datetime.datetime'

[Emmanuel Blot]

This is a plugin issue, please report it on trac-hacks.org

Do not forget to report the version of the plugin you've installed. From the error log, it seems you're using an old version of the plugin.