That message can also mean that the files cannot be written.
Make sure that you have write permission to the folder(s) to which you are copying/moving the images.
Thanks for the quick reply.
I am using Mac OS 10.7.1. In my finder, I went to the LIghtroom catalog and
photo folders and made sure that I had permission to write files as well as
I then restarted the computer and Lightroom; still same problem. Is there a
way to change permissions within Lightroom? (could not find one).
Permissions can only be chnaged at OS level.
So I should be able to fix this under "sharing and permissions" for each
folder when I get information on that folder, right? Doesn't seem to fix
the Lightroom problem though, even though I've changed all users and the
administrator to "read and write" for all privileges.
You were right -- somehow the main hard disk was blocking my permissions.
Have fixed it now; greatly appreciate your help.
Very helpful -- thank you Ian. Problem was permissions on main hard disk, as you suggested.
I just got my mac. Can you tell me specifically how to do this?
Don't know if you have the same problem, but mine was because I didn't have
permissions authorized in the Mac operating system.
If I recall correctly, you have to highlight your hard disk (on the desktop)
and click "command i", and then under sharing a permissions make sure that
the administrator and other users have read and write permission. You may
have to click the lock (on the right bottom of the sharing and permissions
menu) and enter the administrator password to change the permissions. Hope
ok, so I did this but it didn't say specifically administrator and other users. it said system, wheel, and everyone. so I changed it to read & write for all three. But it didn't fix the problem.
Then it's beyond me -- not sure why this wouldn't work. I suggest calling