dear Justin A. Lemkul, thanks for your reply. You were right. Now, it works and generates the nitrogen box. But when I type: grompp_d -f ions.mdp -c 3INC_solv.gro -p topol.top -o ions.tpr
I recieve this error: source file: grompp.c, line: 362 number of coordinates in coordinate file (3INC_solv.gro, 30560) does not match (topol.top, 44471) Now what should I do?( there are 14753Sol file based on my vector number) Regards, Fatemeh Keshavarz -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. Can't post? Read http://www.gromacs.org/Support/Mailing_Lists