Question: Aperture and High Sierra
I just updated to new iMac 27 and High Sierra. And Aperture 3.6 worked great until today. When I started my computer Aperture just didn't open. A message says: You cannot open Aperture because it is being upgraded right now.
I have tried to relaunch from App Store without result. In AppStore there is also a button that says Update
Nothing happens when I push the button.
Thanks for any advice.
10 Dec. 2107
iMac 27 (2017) High Sierra