Lightroom 6 trouble finding photos
I've just upgraded to Lightroom 6. I have my photos on external hard drives. When I search and find photos using the exclamation mark on the thumbnail, and click open, Lightroom 6 says "each file can only be associated with one photo" . I tried importing the photo again, still get the same message. I tried searching for the issue, but didn't find anything.
Any help would be appreciated.
Thanks
Mary