I got the same problem, but I get the error when I try to browse my Time Capsule. Haven't got the time to investigate in detail but I think there's a problem with the permissions.
Check this thread:
http://apple.itsprite.com/applethe-...ause-the-original-item-for-foo-cant-be-found/
Another strange thing is that when I hit "ls -la /Volumes/" I see two mounts of the same drive, first named "Disk" and the other one "Disk-1".
Then I try "mount" in terminal I see:
//username@TimeCapsule...../Disk on /Volumes/Disk-1 (afpfs, nodev, nosuid, mounted by username)
//username@TimeCapsule...../Disk on /Volumes/Disk (afpfs, nobrowse)
And there's probably the problem, the nobrowse setting.