[gmx-users] Fatal error: No such moleculetype Na

vivek sharma viveksharma.iitb at gmail.com
Thu Dec 3 12:33:08 CET 2009


Hi All,
I am trying to run the tutorial "
http://code.google.com/p/acpypi/wiki/TutorialAcpypi4Gromacs" for using
ACPYPI generated topology with GROMACS.
I am using amber99sb forcefield for one docked complex. It is running
successfully upto genion and giving error while doing grompp for energy
minimization
----------
-------------------------------------------------------
Program grompp_d, VERSION 4.0.5
Source code file: toppush.c, line: 1641

Fatal error:
No such moleculetype Na
-------------------------------------------------------
 I tried adding ions entries from amber99sb.rtp to ions.itp and ended up
with same error.
I tried instruction given at "
http://www.mail-archive.com/gmx-users@gromacs.org/msg20965.html" which also
resulted in same error.

I was able to successfully perform EM as well as MD without adding ions i.e
bypassing the genion step.

Please, suggest me the way to get rid of this error.

With thanks,
Vivek
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