From: Vivek Jayabalan on
Hi,
I feel MATLAB is not able to create/copy folders/files in the explorer hence disabling it. Try running with the 'sudo' command.
It works for me!

"Oliver Woodford" <o.j.woodford.98(a)cantab.net> wrote in message <ha4dd0$m5t$1(a)fred.mathworks.com>...
> Hi all
>
> I recently switched from Windows to Linux (Ubuntu 9.04) for my main workstation. Now I've found that occasionally something happens (I don't know what, but it's unrelated to anything I'm doing in MATLAB at the time, if it happens to be running), which causes an error message to appear in the MATLAB command window (if MATLAB was running - I'll post the message here next time it happens), and thereafter, if I try to restart MATLAB I get the error:
> Warning: Unable to create com.mathworks.mde.explorer.Explorer
> and MATLAB's directory explorer window fails to appear. The only way to get it back is to close MATLAB, log out, then log in again.
>
> It seems like a Java related problem, so maybe this is the wrong place to ask about it, but I thought someone might know about this - what causes it and how to fix it. If so, please get in touch.
>
> Thanks,
> Oliver
>
> PS I'm running MATLAB R2009b.