I am receiving this error message during importing photos. It would like the file names and upon checking the specific file, i don't find anything wrong with the photo file. I was hoping to find out what this message mean, so I can under what is the underlying problem and perhaps have a solution.
"WFAsyncDigest.digestFile: Unable to open file"
Could you please post a screenshot of the error?
Also, please let us know what is the format of the images you are trying to import?
Which version of Lightroom & which operating system are you using?