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iCal does not sync with iPhone via iTunes

57915 Views 70 Replies Latest reply: Mar 4, 2014 11:11 PM by Why_do_I_need_a_user_name RSS
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Z001 Level 1 Level 1 (0 points)
Currently Being Moderated
Aug 1, 2012 2:18 AM

I have installed Mountain Lion on my Macbook Air couple of days ago and the calendar stopped syncing with my iphone. I sync through iTunes as I do not wish to use iCloud. Sync is set to all calendars and all events (no restriction), but nothing goes through. Tried adding events through my iPhone or through the Macbook, no difference, they do not get across to the other device. I have checked all settings, they seem to be carried forward from Lion unchanged. Any ideas or is it a Mountain Lion fault. Please do not tell me that the only way to sync will be through iCloud!

MacBook Air (13-inch Late 2010), OS X Mountain Lion, iPhone 4 with latest IOS
  • AKosh Level 1 Level 1 (0 points)
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    Aug 2, 2012 8:14 AM (in response to Z001)

    Where do I find the right cache files to delete? I see many mnay files when i look- not ertain which ones are the safe ones to delete to get mine to synch.

  • eugenephoen Level 1 Level 1 (0 points)
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    Aug 3, 2012 6:45 PM (in response to AKosh)

    In the folder /users/Eugene/Library/Calendars, I deleted "Calendar Cache" and "Calendar Sync Changes", seems to work now

  • RMH Level 1 Level 1 (0 points)
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    Aug 7, 2012 7:53 AM (in response to Z001)

    Dear ZOO1 and eugenephoen, THANKS! that worked. For a minute they had me frightened I had to use "the Cloud" but your solution worked for me too. Delete the "Calander Cache" file and the folder "Calander Sync Changes" from ~/'your-user-name'/Library/Calendars folder solves the issue. Wonder if this trick solves the issue with all other reported problems with syncing (like reminders, notes etc.), I don't need them synced. Also wondered if this is a one-off or needs repair time and time again, but a quick test shows syncing works continuously now. Thanks mates, you made my day.

  • Mikejkahn Level 1 Level 1 (0 points)
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    Aug 8, 2012 12:17 AM (in response to Z001)

    Thank you for the well-meant advice

     

    Sorry - none of it works

     

    To say I am frustrated is a joke!!!!

     

    For starters my system does not follow the logic of Z001 - the file sequence is fifferent on my PB. The only cache file I could locate was 'Calendar Cache' and deleting it made no difference

     

    IAs a precaution I did first export my Calendar to the desktop; then I exited the Cloud; tried to do a manual sync between iPhone and PB. But watching the iTunes indicator bar reveals that the cal syn is simply not happening

     

    So there is a bug.

     

    Heck, my rave has always been how flawlessly the iPhone and MB speak to each other, Mountain Lion has wrecked that.

     

    At present the only workable solution is to dump Mountain Lion and go back to Lion.

  • roberto.buratti Level 1 Level 1 (0 points)
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    Aug 8, 2012 3:41 PM (in response to eugenephoen)

    great!! it works for me.

    thx.

    rob

  • NOTWUK Level 1 Level 1 (0 points)
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    Aug 14, 2012 7:18 AM (in response to eugenephoen)

    tried it and, for the first time, it raised some conflicts between my calendars (for appointments over a year ago, even though in iTunes I've clicked the button 'do not sync events over30 days old') - however nothing in the future appears to have synched.

     

    Any other ideas?

  • vernes Level 1 Level 1 (0 points)
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    Aug 16, 2012 6:32 PM (in response to Z001)

    thank you very much for the tip!  finally worked for me!!  realized the other day that everything that i entered on my iphone doesn't sync with my laptop.  was so frustrated with the problem.

     

    i love apple products but i hate it when apples forces us to move to something not everyone wants... like icloud...  notes syncing is only possible via icloud with mountain lion...  or is there a workaround?

  • emsny Level 1 Level 1 (0 points)
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    Aug 18, 2012 4:58 PM (in response to eugenephoen)

    This worked for me as well, I'm glad to report. Thank you for the information.

  • diftong Level 1 Level 1 (30 points)
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    Aug 20, 2012 4:31 AM (in response to Z001)

    Deleting the files in Library did not help.

     

    Deleting the files in Library > Preferences

     

    com.apple.CalendarAgent.plist

    com.apple.iCal.helper.plist
    com.apple.iCal.plist
    com.apple.iCalExternalSync.plist
    com.apple.syncserver.plist
    ...did the job. Thanks!
  • Mamiya Level 1 Level 1 (0 points)
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    Aug 21, 2012 9:59 AM (in response to diftong)

    This just solved hours and hours of worthless attempts! Thank you so much. I was on the phone with apple support for 3 hours and they couldn't resolve it.

     

    Thank you is an understatement.

  • _mik_ Level 1 Level 1 (0 points)
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    Aug 21, 2012 10:59 PM (in response to eugenephoen)

    It works for me. Thank you very much for the tip.

  • ankofskij Level 1 Level 1 (0 points)
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    Aug 22, 2012 6:39 AM (in response to diftong)

    Hi there, you made my day! That was the answer I've been searching for two weeks!

  • Macbook Guy Level 1 Level 1 (0 points)
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    Aug 27, 2012 11:58 AM (in response to diftong)

    Thank you for your post! Solved my problem as well.

    I wonder why this happens to som many people. Could be "dangerous" to lose important calendar entries.

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