From: Artur Hermano (
Date: Thu Feb 10 2022 - 16:05:12 CST

Hello VMD community!

I want to generate a psf file with hydrogen mass repartitioning, but the command for it appears to be invalid...

I've tried through TkConsole:
>package require psfgen
>readpsf my.psf
>writepsf my.heavy.psf

But I receive an invalid command name "hmassrepart" message and it doesn't work. I have also tried including the hmassrepart command in an input file directly to the psfgen binary, but have received the same error. My VMD version is 1.9.3, so I don't really know what is going on with this error.

Can anybody help me out?
Any help is very much appreciated!