"Calendar can't accept the event...on the Exchange server."

[btownguy]

"Revert to Server" doesn't work.
"Try Again" doesn't work.
"Ignore" doesn't work.

I get this error no matter what. Even if I go into Internet Accounts and tell it to remove the Exchange Calendar, I still get the error when the only thing in my Calendar is my iCloud calendar.

This error is beyond frustrating.

 

[jjohnson985]

Same Issue - Exchange & Calendar not working

Facing the same issue as posted by the other user. Anyone have a solution?