I have versions on Macbook + iMac. The macbook has been updated to 5.7 the iMac has been updated to 5,7.1. The macbook ids ok and works great but the update version has an error message "File could not be read" They can be read on the Nikon software along with photo's on the Mac + they can be read on PS 6. So...... it must be a glitch in the update???
"Files could not be read" indicates you have a permissions problem.
Go to the Import dialog box, and look in the Destination section on the right to see what folder Lightroom is trying to copy the photos into. Make a note of that exact folder. Go to your operating system and change the permissions on that exact folder to Read and WRITE
Yes all good thanks must of clicked the destination file sometime and not realised. Put the right destination in now all working thanks