Got a new iMac, can't open my Photo Library
Hey there, my old 2011 iMac crashed (running Yosemite), and I had been backing up with a Time Capsule. Bought a brand iMac and transferred all the files. Everything is there, except Photos. When I try to open it, I get this error message repeatedly:
This happens even when I hold down "Option" while opening Photos, and then hit "Choose Library." I was on the phone with Apple Care for hours yesterday... no progress... I restored the Photo Library from 2 earlier backups on my Time Capsule, and still have the same issue.
I am also getting this message when I simply click on "Photos" to open:
I kept a copy of the Photo Library in there, so I'd have two to choose from... but when I follow the instructions here, I can't choose "Preferences" to set anything as the System Photo Library.
The library is about 17 GB. It seems as though the Photo Library is corrupted, but it won't let me "Repair" when I hold down Option/Command.
ANY ideas would be helpful! Thanks in advance, Carol
iMac with Retina 5K display, OS X El Capitan (10.11.6)