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iCal problem with Leopard Upgrade

If you upgrade to Leopard 10.5.2, you may experience problems with iCal. When I opened iCal all of my repeating events where shown twice, and I couldn't edit anything.

If this happens to you, you can fix this problem by removing the iCal cache file. Here are the steps to fix:

1 - Quit iCal.

2 - Open a Finder window. From your home directory, go to Library and then Calendars. You should see a file called Calendar Cache. You can either delete this file (scary) or click on it and rename it.

3 - Restart iCal. It will tell you that it is rebuilding the cache. Once it completes, everything will work as it did before this "upgrade".
Rating: 91% positive, 56 total Votes
Categories: iCal Leopard bugs
Added: on Feb 12, 2008 at 9:33 am
Added By: an anonymous user
Searches: ical leopard bug problem upgrade

Comments on this Tip

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Worked perfectly!
– Added by an anonymous user on Feb 12, 2008 at 10:10 am
Yes works great. Thank you.
– Added by an anonymous user on Feb 12, 2008 at 11:33 am
Great - working fine now - many thanks
– Added by an anonymous user on Feb 12, 2008 at 12:01 pm
Solved the problem. thanks
– Added by an anonymous user on Feb 12, 2008 at 2:05 pm
Thanks so much. Ran into this problem with the 10.5.2 update, and this fix was the answer.
– Added by an anonymous user on Feb 12, 2008 at 6:40 pm
Cheers and thank you for sharing. Has saved me a great deal of time, effort and stress.
Peter (Bangkok)
– Added by an anonymous user on Feb 12, 2008 at 7:55 pm
That fixed it, thanks:-)
– Added by an anonymous user on Feb 13, 2008 at 1:28 am
it works perfectly... thx so much.
– Added by an anonymous user on Feb 13, 2008 at 7:12 am
Thanks for the fix. Worked for me.
– Added by an anonymous user on Feb 14, 2008 at 8:42 am
Worked! Thank you. Had to send Calendar to Trash, couldn't rename
– Added by an anonymous user on Feb 14, 2008 at 9:01 am
Didn't work for me. Thanks for sharing the tip, though.
– Added by an anonymous user on Feb 14, 2008 at 10:43 am
worked a treat - thanks!
– Added by an anonymous user on Feb 14, 2008 at 2:00 pm
YOU ARE BEAUTIFUL BABY!!!
Thank you for a great tip!
– Added by an anonymous user on Feb 14, 2008 at 4:17 pm
The problem is deeper than this. Removing the cache does cause the events to reappear, but they don't get updated if you're syncing (through .Mac) with another computer.
– Added by an anonymous user on Feb 14, 2008 at 5:30 pm
Thank you so much! I tried so much other stuff to no avail. Thanks again.
– Added by an anonymous user on Feb 16, 2008 at 1:55 am
God Bless you MAN! This works perfectly!
– Added by an anonymous user on Feb 16, 2008 at 7:21 am
That was the perfect fix. Thanks.
– Added by an anonymous user on Feb 16, 2008 at 3:32 pm
HOORAY!!! Thank you! Thank you! Thank you!
– Added by an anonymous user on Feb 18, 2008 at 8:59 am
Thank you!!!
– Added by gretchengh on Feb 18, 2008 at 3:16 pm
Thank you, thank you, thank you! 3 kids, home business, volunteer work, need I say more? My life is in iCal.
– Added by an anonymous user on Feb 25, 2008 at 8:52 am
Thot my life for the next week was toast! Your fix saved my bacon! The only appointment I missed before finding your fix was breakfast this morning;-) No, really! (Couldn't resist!)
– Added by an anonymous user on Mar 09, 2008 at 5:58 am
Thanks, that's exactly what it needed to work! Excellent tip.
– Added by an anonymous user on Mar 12, 2008 at 9:06 pm
Yee-Haa. Another fix for an upgrade. How "intuitive". GO PC
– Added by an anonymous user on Mar 29, 2008 at 12:13 pm
You helped in a way Apple's Support website could not. Thanks for sharing!
– Added by an anonymous user on Jun 09, 2008 at 9:45 pm
Hi, I would like to try this - can't edit any events in iCal now, didn't understand why til I read your tip - but I don't seem to have a calendar cache!! I follow your instructions, opening Finder, then Library, and then looking for 'Calendars', but there is no file named 'Calendars', only one named 'Caches'... but this doesn't match your description, and I don't see anything in 'Caches' that looks like what might be a Calendar cache... do you have any idea about what I'm encountering? Thanks - L E in DC
– Added by an anonymous user on Jul 11, 2008 at 8:09 am
It sounds like the problem is that you are looking in the /Library directory at the root of the hard drive, not the /Library directory in your *user* directory.
– Added by an anonymous user on Jul 15, 2008 at 7:28 am
Thanks. Could not rename it; stuck it in trash and - it's up and running.
– Added by an anonymous user on Jul 17, 2008 at 1:33 am
HUGE, thank you!
– Added by an anonymous user on Jul 31, 2008 at 5:24 pm
Thank you so much this has been baffling me for weeks i've tried everything i could think off! I can finally use my calender again.
– Added by an anonymous user on Aug 02, 2008 at 8:20 am
Worked great. Thanks
– Added by an anonymous user on Aug 17, 2008 at 11:21 am
I have upgraded to 10.5.4 and now iCal will not even launch any ideas?
– Added by an anonymous user on Aug 19, 2008 at 9:32 pm
I've updated to 10.5.5 and my iCal is now completely blank. I tried the above tips (from earlier versions) but it's not working. Other ideas?
– Added by an anonymous user on Sep 17, 2008 at 9:33 pm
same as above:
I've updated to 10.5.5 and my iCal is now completely blank. I tried the above tips (from earlier versions) but it's not working. Other ideas?
– Added by an anonymous user on Sep 21, 2008 at 11:59 am
Brilliant, thanks, I've been struggling with this problem for months & fixed in couple of seconds now!
– Added by an anonymous user on Sep 22, 2008 at 7:25 pm
Thanks -- iCal had ground to a halt. Turns out my cache had become 17MB! Deleting it fixed the problem for now!
– Added by an anonymous user on Sep 23, 2008 at 8:43 am
Excellent, worked perfectly! My husband is an IT guy and upgrades my Mac every chance he gets. I know his heart's in the right place, but it's bugs like these that keep me resisting the upgrades. Thank you!
– Added by an anonymous user on Oct 01, 2008 at 8:39 am
Thank you!
– Added by an anonymous user on Oct 11, 2008 at 11:04 am
worked. but why?? thanks anyway.
– Added by an anonymous user on Oct 26, 2008 at 11:19 pm
works in the short term but not when you have multiple computers synced, the problem keeps appearing
– Added by an anonymous user on Apr 30, 2009 at 6:35 pm
yeah, mine didn't work either... :( I don't know what to dooooo I have the same prob as up above, there is 'caches' but nothing too specific sounding...in library, under 'calendars', a few came up and i tried the trash thing but to no avail. aaaah! so frustrating.
– Added by an anonymous user on Jun 15, 2009 at 6:03 am
This didn't help at all. Have tried several times now, but the only thing that has worked is re-installing iCal. But then with the next "update" it goes down again: No events, can't add an event, have to force-quit to make it go away.
– Added by an anonymous user on Aug 16, 2009 at 4:45 pm
works great! thanks!
– Added by an anonymous user on Sep 07, 2009 at 12:23 am
Wonderful, thank you so much.
– Added by an anonymous user on Sep 29, 2009 at 4:36 pm
I am trying to delete one day from a repeating event and after deleting, the event on that day magically reappears! This tip did not work in this case. Any other ideas?
– Added by an anonymous user on Oct 10, 2009 at 9:03 am
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