When I launch Photos, I get a message saying that the library cannot be opened and that it is in use by another program. I tried starting with command-option held down but get the same message. Tried logging out and logging back in, tried restarting the computer. I didn't find anything useful at Apple support. Any suggestions?
iMac 21.5", macOS 10.15
It's on an external SSD. It's been there for years with no previous problems.
The good news is I restarted the computer again this morning, and now the problem is resolved. I still don't know what caused it, but at least it's gone.
It's on an external SSD. It's been there for years with no previous problems.
The good news is I restarted the computer again this morning, and now the problem is resolved. I still don't know what caused it, but at least it's gone.
How is the SSD formatted?
Where is your Photos Library stored?
Mac OS Extended (Journaled)
Can't open Photos library - in use by another program
