[gmx-users] grompp - Invalid command line argument

Justin A. Lemkul jalemkul at vt.edu
Tue Mar 6 17:17:50 CET 2012

Lara Bunte wrote:
> Hi
> I used the command 
> grompp -f em.mdp -p topol.top -c solvated.gro -o em.tpr
> and got the error
> Source code file: /home/adrian/src/gromacs-4.5.5/src/gmxlib/statutil.c, line: 819
> Invalid command line argument:
> em.tpr
> What is the problem here?

The command posted above is syntactically correct, so it's not what you typed ;) 
  Check carefully for typos and spacing, particularly if you have mis-spaced or 
omitted the -o flag, which would cause the file name to be incorrectly interpreted.



Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080


More information about the gromacs.org_gmx-users mailing list