Problems with Google Calendars and iCal in Lion

Solution 1:

BusyCal is the best answer I can give you if you only want to sync calendars to Google.

I would also highly recommend SpanningSync which will also sync your Contacts in a much better and more reliable manner than Address Book will.

(I have no affiliation with either company, and am a paying customer/user of both. I use/love BusyCal for my calendar, but I sync with MobileMe not gCal… I use SpanningSync to sync my contacts to Gmail. I have written reviews for both Spanning Sync and BusyCal.)

Solution 2:

At the time Google stopped the possibility of deleting iCal events because of problems with iCloud which seemed to delete things from the google calender. Google already informed apple about this. Resetting iCal won't function until google reactivates the feature and apple fixes their iCloud bug. Hope this issue will be fixed soon...

Here is the link to the known issues page: http://www.google.com/support/calendar/bin/static.py?page=known_issues.cs