Do these 2 libraries open correctly in Aperture?
If so, have you thought of doing any (or all) of the maintenance procedures offered when you click Aperture in the Dock while holding down the "Option" and "Command" keys?
THEN, try again to copy them to your Drobo.
I have no proof any of this will help, just thought was worth mentioning.
Currently the two libraries reside on a 6TB WD HD. They Drobo was formatted with Mac OS. I have been able to move 5 libraries with no problem, but the last two had the error code.
Overnight I created a new Library in Aperture, then imported one of the problem libraries and it worked with no issue so it looks like I found a path forward.
The two problem libraries open fine from the 6TB HD in Aperture. The one I moved overnight to the drobo now works correctly also so I guess this will not be an issue to move the last one, but I am curious why it would not work the same as the other libraries by just copying them from the finder.
Basically Error -36 is an I/O error, but many situations can cause it:
- It is symptomatic of bad media. If you see this error while copying from one hard disk to another, then you may have bad media and it can indicate bad blocks or a failing drive. When I encounter this error, my first action is to update my backups asap!
- It may be a permissions problem - you may not have permissions to access some items in the Aperture library. This can easily be fixed by using the Library First Aid Tools, repair permissions, etc. This can be caused by sharing the library between users or accessing the files from outside Aperture.
- It may be a case of unreadable filenames for some image versions or originals in your library - filenames that are too long or contain special characters. This can happen, when you are syncing your library with web services that create filenames from captions, like Facebook, copy between disks with the wrong formatting, or access your library in other ways from outside Aperture.