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ApplePie22

macrumors member
Original poster
Nov 17, 2011
62
0
when I open Calendar on my iMac (late 2015) all of a sudden this error pops up, gives me three choice:
  • Revert to Server
  • Try Again
  • Ignore
I click all three and nothing happens, it just disappears for a second and pops back up. I can't use the Calendar at all, and have to do a Force Quit to exit Calendar. Any insight?
 
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