I am culling numerous photos from my library. After about 600 deletions, and numerous emptying of Trash along the way, when I try to delete a photo(s) I get the error message, "Cannot remove (fname) to trash." My photos are all stored on an 2TB internal drive on my iMac with 1.5TB free. Oddly, there are a few photos stored on my main SSD, capacity 250GB with 39GB free, and I can delete from that drive. Today, I went directly to my 2TB drive and was able to drag photos (not associated with Lr) directly from it to the trash. So my assumption is it's not the drive or OS X 10.10.1, rather something awry in Lightroom. Thanks for any suggestions you may have.