ical is stuck on the following progress bar "upgrading ical calendars". How to fix?

Thanks very much Ferd. This worked 🙂

I gather I just then delete the cache files from my desktop?

You are welcome...glad to help.

The files that were moved to the Desktop can be trashed.

I know this is an old post...but it still helped me today! I appreciate your straight forward response in language any Applite can understand 🙂 Thanks for your help!

As is common among "Classically Trained Applites" (;), one good tip deserves another. HST...here is another little tiddy that's g2k. The User's Library file can also be accessed by selecting the Go menu while holding the Option Key.