iCal CalDAVDetectCalendarsOperation error?

[XenoPhage]

Hi all,

I seem to be having some problems synchronizing my zimbra calendar with iCal (OSX 10.5.6, iCal 3.0.6 (1273)). I get a notice that the Calendar can not be found and the following is in the console log:

4/1/09 4:58:21 PM iCal[2102] CalDAV CalDAVDetectCalendarsOperation failed: status 'HTTP/1.1 404 Not Found' request:

<?xml version="1.0" encoding="utf-8"?>
<x0:propfind xmlns:x1="http://calendarserver.org/ns/" xmlns:x0="DAV:" xmlns:x3="http://apple.com/ns/ical/" xmlns:x2="urn:ietf:params:xml:ns:caldav">
 <x0:prop>
  <x1:getctag/>
  <x0:displayname/>
  <x2:calendar-description/>
  <x3:calendar-color/>
  <x3:calendar-order/>
  <x0:resourcetype/>
  <x2:calendar-free-busy-set/>
 </x0:prop>
</x0:propfind>

... response:
HTTP/1.1 404 Not Found
Date: Wed, 01 Apr 2009 20:58:15 GMT
Content-Length: 0

Some additional information. This has happened before and I was unable to determine why. I think I figured it out this time, but it doesn't make much sense to me.

Initially, in addition to my personal calendar, I had two shared calendars. This synchronized with no problems. As soon as I added an additional calendar, however, I ran into this problem.

Is this a known issue? I have tried deleting the account from iCal, but no dice. Same issue when it's re-added.

Help! This is driving me crazy!

--
XenoPhage

[XenoPhage]

Does anyone have any idea how I can debug this and determine what the problem is?

[XenoPhage]

Additional information. The following is from the zimbra mailbox.log file when I try to refresh my calendar via iCal:

2009-04-27 17:08:44,170 INFO [btpool0-7065] [aname=xenophage@example.com;ip=10.0.0.1;ua=DAVKit/3.0.6 (653);; CalendarStore/3.0.6 (847);; iCal/3.0.6 (1273);; Mac OS X/10.5.6 (9G55);] mailbox - FileUploadServlet received Upload: { accountId=<masked guid>, time=Mon Apr 27 17:08:44 EDT 2009, uploadId=<masked guid>:<masked guid>, null}
2009-04-27 17:08:44,172 WARN [btpool0-7065] [aname=xenophage@example.com;ip=10.0.0.1;ua=DAVKit/3.0.6 (653);; CalendarStore/3.0.6 (847);; iCal/3.0.6 (1273);; Mac OS X/10.5.6 (9G55);] dav - can't get mail item resource for xenophage, /
2009-04-27 17:08:44,172 INFO [btpool0-7065] [aname=xenophage@example.com;ip=10.0.0.1;ua=DAVKit/3.0.6 (653);; CalendarStore/3.0.6 (847);; iCal/3.0.6 (1273);; Mac OS X/10.5.6 (9G55);] dav - /home/xenophage/ not found

I changed the user/domain as well as masking out the guids.. Has anyone else seen this? Calendaring works fine within Zimbra itself (via the web interface), but I cannot sync with iCal.