Photos failing to import: "The file doesn't exist"
Macbook Pro, running OS 10.12.6.
I'm trying to import photos into Photos.app. They're from the same camera that I've used many times successfully before, and I haven't changed anything in the camera settings that would affect the file format. But when I try to import my latest photos, I get a window with a pile of errors, one for each photo.
Each error is the same: "IMG_1136.JPG The file '2007115-022850' doesn't exist." The image name changes, but the name of the file that "doesn't exist" doesn't.
I normally import photos directly from the memory card, but after that didn't work, I tried copying the photos over to my computer and importing them from there. Same error.
The photos appear to be undamaged--I can view them in Preview just fine. It's just Photos.app that won't take them.
Aside from this Photos.app appears to be working normally. I can view and edit my existing photos.
Help me please!