Hello, I am working on a CalDAV free/busy client and I am running into a '500 Internal Server Error' I'm guessing it's not a permissions issue since I am doing a free/busy lookup on my own account. Maybe the dates are a problem? :-) How does the calendar server handle out-of- range requests? How can I query the range? I've included the iCalendar data and the server log with the exception at the end of this email. This is the latest SVN build. The iCalendar data looks like... BEGIN:VCALENDAR PRODID:-//OpenConnector.Org//Open Connector Groupware//EN VERSION:2.0 METHOD:REQUEST BEGIN:VFREEBUSY UID:{e0bf2b91-d6f9-4613-9aa0e2cbe03d6417}-{cda44d9b-1684-fc43-9410d589bac3 89da} DTSTART:16010101T000000Z DTEND:45000831T235959Z ORGANIZER:mailto:kervin@adevsoft.com ATTENDEE;CN=Kervin L. Pierre:mailto:kervin@adevsoft.com END:VFREEBUSY END:VCALENDAR The log looks like... 2008-06-06 09:20:41-0700 [-] [caldav-8008] [HTTPChannel,1,208.54.95.95] [twiste d.web2.dav.resource#info] POST /calendars/__uids__/6a357efc-8a18-5252-80ad-b11a7 1a1232f/outbox/ HTTP/1.1 2008-06-06 09:20:41-0700 [-] [caldav-8008] [HTTPChannel,1,208.54.95.95] [twiste d.web2.dav.resource#info] POST /calendars/__uids__/6a357efc-8a18-5252-80ad-b11a7 1a1232f/outbox/ HTTP/1.1 2008-06-06 09:20:42-0700 [-] [caldav-8008] [HTTPChannel,1,208.54.95.95] Excepti on rendering: 2008-06-06 09:20:42-0700 [-] [caldav-8008] [HTTPChannel,1,208.54.95.95] Unhandl ed Error 2008-06-06 09:20:42-0700 [-] [caldav-8008] Traceback (most recent call last ): 2008-06-06 09:20:42-0700 [-] [caldav-8008] File "/home/caldav/src/Twisted /twisted/web2/static.py", line 124, in renderHTTP 2008-06-06 09:20:42-0700 [-] [caldav-8008] d = maybeDeferred(super(Stat icRenderMixin, self).renderHTTP, request) 2008-06-06 09:20:42-0700 [-] [caldav-8008] File "/home/caldav/src/Twisted /twisted/internet/defer.py", line 107, in maybeDeferred 2008-06-06 09:20:42-0700 [-] [caldav-8008] result = f(*args, **kw) 2008-06-06 09:20:42-0700 [-] [caldav-8008] File "/home/caldav/src/Twisted /twisted/web2/resource.py", line 88, in renderHTTP 2008-06-06 09:20:42-0700 [-] [caldav-8008] return method(request) 2008-06-06 09:20:42-0700 [-] [caldav-8008] File "/home/caldav/src/Twisted /twisted/internet/defer.py", line 813, in unwindGenerator 2008-06-06 09:20:42-0700 [-] [caldav-8008] return _inlineCallbacks(None , f(*args, **kwargs), Deferred()) 2008-06-06 09:20:42-0700 [-] [caldav-8008] --- <exception caught here> --- 2008-06-06 09:20:42-0700 [-] [caldav-8008] File "/home/caldav/src/Twisted /twisted/internet/defer.py", line 724, in _inlineCallbacks 2008-06-06 09:20:42-0700 [-] [caldav-8008] result = g.throw(result.type , result.value, result.tb) 2008-06-06 09:20:42-0700 [-] [caldav-8008] File "/home/caldav/src/Calenda rServer/twistedcaldav/schedule.py", line 195, in http_POST 2008-06-06 09:20:42-0700 [-] [caldav-8008] yield self.authorize(request , (caldavxml.Schedule(),)) 2008-06-06 09:20:42-0700 [-] [caldav-8008] exceptions.TypeError: iteration over non-sequence 2008-06-06 09:20:42-0700 [-] [caldav-8008]