I'm getting a Current Directory Warning

I'm not too familiar with MATLAB but I was hoping someone could help me. A user at my location gets a "Current Directory Warning". This is the body of the message:

"MATLAB might not automatically notice changes to files in the new current directory. This is because MATLAB could not get a change notification handle for that directory.

Possible Reasons Inlcude: -Windows has exhusted its supply of change notification handles. -The file server does not support timestamp notification updates."

This is a recent issue. Can anyone tell me what it means and/or how to fix it? The user is on R2009B and has tried a restart of both MatLab and the PC and is still getting this. Any help would be appreciated. I'm shooting in the dark here. Thank you.

[Walter Roberson]

Is the user using a networked filesystem such as NFS ?

[Ross]

@Walter

As far as I know he is using a network drive to store and share data with other users. Not a direct user-to-user NFS.

[Walter Roberson]

Which networked filesystem is it?

(Side note: NFS is not user-to-user, it is client machine and server)

Answer 1

[Jan]

I'm struggling with this problem for many years now in different setups:

• Windows network with 20 clients accessing a base folder with all user-defined M-files on the server.
• A virtual machine on my local PC, the base folder for the M-file is on the host, whose drives are mounted in the virtual machine as network drives.

I've found some suggestions, but not a reliable solution:

• http://www.mathworks.com/support/solutions/en/data/1-18IFI/index.html?solution=1-18IFI
• http://www.mathworks.com/support/solutions/en/data/1-15JM8/index.html?solution=1-15JM8
• http://support.microsoft.com/kb/926646

For a productive work I've created a function, which copies the M-files to a local folder automatically and restrict the write-access, such that the developpers will add changes on the server only. Unfortunately this strategy conflicts with the ability to debug in modern Matlab releases.