[gmx-users] Regarding error.

Dylan Smith dylan at lightblast.info
Tue May 22 07:10:21 CEST 2012

Hi Suryanarayana,

http://www.gromacs.org/Documentation/Errors is where i'd start. But to help 
you along this error suggests that you have a different number of atoms in 
your coordinate file(.gro) than your topology(.top) suggests. Often this can 
be caused by adding or removing ions or solvent without modifying your .top 

Dylan Smith

On 2012-05-22 15:03, Seera Suryanarayana wrote:
> Dear all gromacs users,
>                                  I tried the
> grompp and i got the following error.
> Fatal error:
> number of coordinates in coordinate file (1UZ9_ion.gro, 41103)
>              does not match topology (1UZ9.top, 41100)
> Is there any explanation why is thid happening?
> I would appreciate any help. Iam new in using MD and gromac in particular.
> Suryanarayana Seera,
> PhD student,
> Hyderabad,
> India.

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