File Not Found / Fade Update Failed Error -43

Question

I have been getting two errors all of a sudden when instigating playback in the Arrange window in Logic 9.
File Not Found Result Code -43
and
Fade Update Field Error -43
I have googled information on this and have tried the following:
Used "Save As" and changed the name of the project file
Removed automation at the start of 3 tracks where i have automated in a gradual increase in volume
Gone to the Audio menu and selected "Delete Fade Files"
None of the above have worked. I have not used the crossfade tool to add a fade to the start or end of a track, i have only created a fade effect by using Volume Automation.
There seems to be other people having the same problem but i haven't found any with the -43 error code.
Does anyone know what that code relates to?
Have you any suggestions as to how i can get rid of this error?
Thanks

Answer 1

I recently had issues with a "File Not Found" error, though it was a different code #. (-61, or something similar.)
I was trying to move a track from my old G4 and work on it on my Macbook Pro laptop.
The problem turned out to be related to file permissions.
Logic is not a network-friendly program, and OS X is hyper sensitive to permissions, so to access a file that was originally stored on another computer, I had to do two things:
"Get Info" for the drive (it was not a system drive) that the original file was stored on, and check the box at the bottom:
"Ignore Permissions on This Volume"
From the user account on that computer, I then copied the file from the internal drive to an external firewire drive which also had "Ignore Permissions" checked off in the "Get Info" window.
I could then access the file from my user account on the laptop.
Once I did those steps, the "File Not Found" error no longer appeared.