Sync errors between iCal and Google Calendars

caldaverrorgoogle-calendarical

For the most part iCal and Google Calendars via CalDAV just work for me. But irregularly, throughout the day, iCal will start bouncing in my dock and display a warning like the following:

iCal Sync Error

What I know about the problem:

  • It happens randomly. I can hit Refresh All in iCal and this sync error won't occur.
  • The account with the error can change. It's not always a problem with the same account. I keep three Google calendars in sync with on iCal instance.
  • It happens randomly throughout the course of a day. I can't predict when a sync will fail with this error.
  • It does happen at all hours. I've had the pop-up show up at 9 am, and 9 pm and even 3 am.
  • I've been unable to tell if the error results in an out-of-sync state between iCal and Google Calendar. That's what makes me nervous.

How can I make these sync errors go away for good?

Best Answer

This is a common error. The iCal auto setup has created an incorrect address for you. There should be no "slash" / at the end of the address i.e. it should be

/calendar/dav/youremail@domain.com/user

To fix it, go to Preferences / Accounts and change the address, removing the final / from the Server Path setting.

AFAIK Lion no longer has this bug.

Related Question