Re: namd2.exe has stopped working, NAMD Energy

From: Darya Fadavi (
Date: Thu Feb 02 2017 - 19:44:09 CST

I tried moving the psf and dcd files to a shorter path length location but
I'm still getting the namd2.exe stopped working error with the Fatal Error
being it can't open the psf file.

On Wed, Feb 1, 2017 at 12:45 PM, Goedde, Chris <> wrote:

> On Feb 1, 2017, at 12:31 PM, Darya Fadavi <>
> wrote:
> >
> > Hello,
> >
> > I'm trying to calculate energy plots (VDW, Elec, Nonbond) using the NAMD
> Energy extension. I've specified the parameter file I used but when I try
> to run it, I get the error that "namd2.exe has stopped working". I'm
> working on Windows, and I downloaded and extracted the entire zip file for
> namd, so I don't think I'm missing any files.
> >
> > I then looked to the temp log file created in the current directory to
> see what the fatal error was and it says "FATAL ERROR: UNABLE TO OPEN .psf
> FILE C:UsersDarya FadaviDocumentsMofrad_Lab mdSUN projectMouseSun1 dxt
> templateWith KRun1mousesun1_ionized.psf". I'm not sure why it wasn't able
> to open the psf file. I've loaded it in vmd and opened the dcd file on top
> of it at stride 10.
> I had trouble with the unix version of namd choking on path names that
> were longer than about 135 characters. This might be a similar issue. You
> could try renaming or moving the file so the path length is shorter and
> seeing if that fixes things.
> Chris Goedde

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