I have tried to delete a birthday from the Birthday calendar. I had this on an annual recurrence with no end date. When I opened the event there was no way to “edit” or “delete” it. I simply deleted it from the calendar, and now I get constant error messages:
“the delete action is not supported for this property.” There is a red triangle with exclamation point telling me of this error. How do I get rid of the error message and the red triangle?