[gmx-users] forcefield error for atoms

[mah maz]

Hi Justin,
Thanks for your reply. As you guessed correctly, for making a topology file
I used "g_x2top -f  file.gro -o file.top -ff forcefield -noparam". I have a
CNT system and I thought I should use g_x2top instead of pdb2gmx command.
If I'm right, what may cause this error and what would be the solution?
Thanks!

On Mon, Mar 23, 2015 at 12:41 AM, mah maz <mahmaz71 at gmail.com> wrote:

> Dear all,
> I need to insert some atoms (without any bonds to other atoms) or even
> ions in my system. I have created the .pdb, and .gro files, but when I
> try to generate the .top file it stops with the following error: "
> forcefield not found for atoms with 0 bonds". Is there a way to solve this
> problem?
> Thanks!
>