Sorry to have to say this but Aperture libraries on NAS are not supported.
When Aperture updates a library across major numbers (2 to 3) it normally makes a copy of the original. Look on your NAS to see if there is an Aperture 2 library and if there is copy it off and then do the upgrade.]
If there isn't a copy of the 2 library then I'm afraid you;ll need to retrieve it from your backups.
Thanks Frank. I am sort of prepared for the bad news ... "NAS are not supported" is not exactly ... I have been on a NAS for quite some time. Upgrading is the issue.
The folder is EMPTY. No backup, no nothing. I think I need to call Paradise support (NAS box provider) to see if there is any way to "undelete". The .jpg, .orf, DNG file are still there. The location on the disk is clobered (file allocation table) because of the errant upgrade attempt.
Aarg ... I have no other option and feel let down by the "it just works" assumption. Of course, I kick myself for not doing a backup. I do have a OWC RAID array which is Mac extended formatted. It is older, slower, in need of repair, blah, blah. I could have been paranoid and made sure it was backed up.