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Error "400" to operation CalDAVWriteEntityQueueableOperation preventing any iCal activity

All of a sudden, I can't write or delete events unless I go offline. It shows me:


The request for “New Event” in “Awesome Life” in account “iCloud” failed.



The server responded with

“400”

to operation CalDAVWriteEntityQueueableOperation.


I've also tried doing so on icloud.com and I got nowhere. I've also tried deleting the iCloud account off iCal then adding it again, nothing. I was able to access the root profile but then had no idea how to access the files themselves...their path, I mean.


I'm kind of in desperate need for iCloud at these times of finals and exams all around so I'd really appreciate it if someone had the time to help. The error part of the debug log is here:



2012-05-15 19:43:10.104 iCal[1124:707]

>>>>>

2012-05-15 19:43:10.105 iCal[1124:707] PUT https://p05-caldav.icloud.com/278480740/calendars/AADD2181-D7CD-47F1-B2C3-04F8A8 38D8F2/DBF835BF-8870-4493-9033-F8D39C763D35.ics

2012-05-15 19:43:10.105 iCal[1124:707] Content-Type: text/calendar

2012-05-15 19:43:10.105 iCal[1124:707] If-None-Match: *

2012-05-15 19:43:10.105 iCal[1124:707] Content-Encoding: gzip

2012-05-15 19:43:10.105 iCal[1124:707] User-Agent: CalendarStore/5.0.2 (1166); iCal/5.0.2 (1571); Mac OS X/10.7.3 (11D50d)

2012-05-15 19:43:10.106 iCal[1124:707] Content-Length: 392

2012-05-15 19:43:10.106 iCal[1124:707] Cache-Control: no-transform

2012-05-15 19:43:10.106 iCal[1124:707] X-Apple-Client-Info: <MacBookPro8,2> <Mac OS X;10.7.3;11D50d> <com.apple.coredav/1.0.1 (com.apple.iCal/5.0.2)>

2012-05-15 19:43:10.106 iCal[1124:707]

2012-05-15 19:43:10.106 iCal[1124:707] [compression: gzip]

BEGIN:VCALENDAR

VERSION:2.0

PRODID:-//Apple Inc.//iCal 5.0.2//EN

CALSCALE:GREGORIAN

BEGIN:VTIMEZONE

TZID:Africa/Cairo

BEGIN:STANDARD

TZOFFSETFROM:+0300

DTSTART:20041001T000000

TZNAME:EET

TZOFFSETTO:+0200

RDATE:20041001T000000

RDATE:20050930T000000

RDATE:20060922T000000

RDATE:20070907T000000

RDATE:20080829T000000

RDATE:20090821T000000

RDATE:20100811T000000

RDATE:20101001T000000

END:STANDARD

BEGIN:DAYLIGHT

TZOFFSETFROM:+0200

DTSTART:20100910T000000

TZNAME:EET

TZOFFSETTO:+0300

RDATE:20100910T000000

END:DAYLIGHT

END:VTIMEZONE

BEGIN:VEVENT

CREATED:20120515T174308Z

UID:DBF835BF-8870-4493-9033-F8D39C763D35

DTEND;TZID=Africa/Cairo:20120512T170000

TRANSP:OPAQUE

SUMMARY:New Event

DTSTART;TZID=Africa/Cairo:20120512T160000

DTSTAMP:20120515T174308Z

SEQUENCE:1

END:VEVENT

END:VCALENDAR

2012-05-15 19:43:10.106 iCal[1124:707]

2012-05-15 19:43:10.106 iCal[1124:707] >>>>>

2012-05-15 19:43:12.652 iCal[1124:707]

<<<<<

2012-05-15 19:43:12.652 iCal[1124:707] HTTP/1.1 400 (Bad Request)


2012-05-15 19:43:12.653 iCal[1124:707] Content-Length: 124

2012-05-15 19:43:12.653 iCal[1124:707] Content-Type: text/html;charset=utf-8

2012-05-15 19:43:12.653 iCal[1124:707] Date: Tue, 15 May 2012 17:43:12 GMT

2012-05-15 19:43:12.654 iCal[1124:707] DAV: 1, access-control, calendar-access, calendar-schedule, calendar-auto-schedule, calendar-managed-attachments, calendarserver-sharing, calendarserver-subscribed, calendarserver-principal-property-search

2012-05-15 19:43:12.654 iCal[1124:707] Server: iCloudCalendarServer 1J59

2012-05-15 19:43:12.654 iCal[1124:707] X-Responding-Server: st11p05me-caldav003 2

2012-05-15 19:43:12.654 iCal[1124:707] X-Transaction-Id: 71200eba-9eb5-11e1-ad9b-78e3b51ce344

2012-05-15 19:43:12.654 iCal[1124:707]

2012-05-15 19:43:12.655 iCal[1124:707] <html><head><title>Bad Request</title></head><body><h1>Bad Request</h1><p>BADARG: Bad argument to function</p></body></html>

2012-05-15 19:43:12.655 iCal[1124:707]

<<<<<

2012-05-15 19:43:14.861 iCal[1124:707] CalDAVOperationQueue tried to dequeue operation <CalDAVWriteEntityQueueableOperation: 0x7f871f049450; Sequence: 260> but it was not at the front of the queue.

2012-05-15 19:43:14.864 iCal[1124:707]

>>>>>

2012-05-15 19:43:14.864 iCal[1124:707] GET https://p05-caldav.icloud.com/278480740/calendars/AADD2181-D7CD-47F1-B2C3-04F8A8 38D8F2/DBF835BF-8870-4493-9033-F8D39C763D35.ics

2012-05-15 19:43:14.864 iCal[1124:707] User-Agent: CalendarStore/5.0.2 (1166); iCal/5.0.2 (1571); Mac OS X/10.7.3 (11D50d)

2012-05-15 19:43:14.864 iCal[1124:707] X-Apple-Client-Info: <MacBookPro8,2> <Mac OS X;10.7.3;11D50d> <com.apple.coredav/1.0.1 (com.apple.iCal/5.0.2)>

2012-05-15 19:43:14.864 iCal[1124:707] Content-Length: 0

2012-05-15 19:43:14.864 iCal[1124:707]

2012-05-15 19:43:14.864 iCal[1124:707]

2012-05-15 19:43:14.864 iCal[1124:707] >>>>>

2012-05-15 19:43:15.292 iCal[1124:707]

<<<<<

2012-05-15 19:43:15.292 iCal[1124:707] HTTP/1.1 404 (Not Found)


2012-05-15 19:43:15.293 iCal[1124:707] Content-Length: 299

2012-05-15 19:43:15.293 iCal[1124:707] Content-Type: text/html;charset=utf-8

2012-05-15 19:43:15.293 iCal[1124:707] Date: Tue, 15 May 2012 17:43:15 GMT

2012-05-15 19:43:15.293 iCal[1124:707] DAV: 1, access-control, calendar-access, calendar-schedule, calendar-auto-schedule, calendar-managed-attachments, calendarserver-sharing, calendarserver-subscribed, calendarserver-principal-property-search

2012-05-15 19:43:15.293 iCal[1124:707] Server: iCloudCalendarServer 1J59

2012-05-15 19:43:15.293 iCal[1124:707] X-Responding-Server: st11p05me-caldav026 16

2012-05-15 19:43:15.293 iCal[1124:707] X-Transaction-Id: 72d48bc8-9eb5-11e1-8ced-78e3b51263b0

2012-05-15 19:43:15.293 iCal[1124:707]

2012-05-15 19:43:15.293 iCal[1124:707] <html>

<head>

<title>404 Not Found</title>

</head>

<body>

<h1>Not Found</h1>

The resource /278480740/calendars/AADD2181-D7CD-47F1-B2C3-04F8A838D8F2/DBF835BF-8870-4493-90 33-F8D39C763D35.ics cannot be found.

</body>

</html>

2012-05-15 19:43:15.293 iCal[1124:707]

<<<<<

MacBook Pro, Mac OS X (10.7.3)

Posted on May 15, 2012 10:56 AM

Reply
7 replies

Nov 22, 2012 2:53 PM in response to awesomity

Try this:


Back up calendars. Disable calendars, open finder and move the following folders from ~/Library/ to your desktop.


  • /Calendars
  • /Preferences/com.apple.iCal.plist
  • /Preferences/com.apple.CalendarAgent.plist


If you find other iCal / Calendar referring files, move them also (these were the ones I found): Keep a track of where they came from in case you need to put them back. Then reenable iCloud Calendars in preferences and reenter account info in Calendars if it's missing. Everything is working as it should now.


Stackexchange thread where I found and refined the tip.

Error "400" to operation CalDAVWriteEntityQueueableOperation preventing any iCal activity

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