Reminder notification that won't go away on Sierra

Unfortunately, this still did not work for me. I deleted the calendars folder per your instructions (after I backed it up to a flash drive) and restarted my calendars app. The problem notification immediately popped up again. I also lost all my calendar and reminders information. I ended up replacing the calendars folder and regained all the lost information, but the notification is still hounding me, despite the fact that I have deleted the reminder entirely from the app.

I'm glad you regained all your lost information. But I don't know why your notification isn't going away. Your situation is apparently different from mine.

I appreciate your help, Doug. I learned something new about my Mac, so there is a silver lining, after all.

I'm sure this will eventually get ironed out, as it seems many are having this issue. I'll just keep my fingers crossed and check back regularly for a solution.

Cheers!

Thank you for the resolution. It just started today and was driving me nuts.

Having this same problem however the potential fix doesn't seem to work for me. I do not have a ~Library/Calendar anywhere that I can find. I have unsynced from iCloud and resynced to no avail. Very frustrating.

The Library folder is hidden by default. If you are in the Finder, choose the Go -> Go to Folder... menu item and paste in "~Library" (without quotes). That will open it and you should be able to see your Calendars folder

Says that folder cannot be found.

Same here. It's a very annoying and frustrating bug!

Absolutely did not work for me. I even called Support, walked through it with them. No luck. Went to the Apple store to work with a Genius. No help there either.

In the menu bar, have you tried going to Finder -> Go while holding down the "option" key? It should make the Library folder appear in the list.

I found and removed the Calendar folder in my library and the annoying pop-up stopped.

I have the same problem, which began to hunt me yesterday. Mine is a recurring reminder that keeps popping up, even if notifications are turned off.

I don’t find a library/reminders or something like that, I do find the library/calendars… Is that the same?

I am reluctant to delete the library/calendar. If I do that will the calendar execute again?

I have now, twice, done this. Both the time it fixes the issue but then all subsequent reminders/calendar for new events start popping up again. I hope there is a permanent solution to it.

You. Saved. My. Life.

I also have this problem, which started today. I have tried all the "solutions" that have been helpfuly offered, but have not been able to stop a calendar reminder appearing ever few minutes.

Additionally, I have not been able to locate the Calendar folder in the Library.

Can anyone offer any assistance?

How long to we have to wait for Apple to come up with a fix?