[plt-scheme] puzzling code compilation version warning for "mzscheme -M errortrace" in Emacs

On Apr 28, Benjamin L. Russell wrote:
> [...] and adding "C:\Program Files\PLT" (the directory containing
> MzScheme.exe) [...]
> 
> --
> Welcome to MzScheme v372 [3m], Copyright (c) 2004-2007 PLT Scheme Inc.
> > c:\bin\plt\collects\errortrace\compiled\errortrace.zo::0: read (compiled): code compiled for version 371, not 372
> --
> 
> Apart from this version warning, MzScheme seems to work fine in
> Emacs.  This version of MzScheme.exe is the one bundled into
> DrScheme, version 372, english.  Any ideas on fixing this version
> warning?

It looks like you have two PLT versions -- one in
"c:\Program Files\PLT" and one in "C:\bin\plt".

-- 
          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                  http://www.barzilay.org/                 Maze is Life!