Error 127 using secure file transfer

[John Sutherland]

> I can use SSH fine, but when I try to open a secure file transfer window I
> get an error:  
> 
> File transfer server could not be started or it exited unexpectedly.  
> Exit value 127 was returned.
> 
> How can I make this work?
> 
> Thanks,
> 
> John