[gmx-users] error in grompp command

[ERASTOVA V.]

Hi Rinu,

See what forcefield files you include in your topology, then go to the force field folders and check if those indeed have that atom types.
You must indeed be missing the CA type. Likely, you just forgot to include some topology file.

V




On 2 Jul 2014, at 10:23, gromacs.org_gmx-users-request at maillist.sys.kth.se<mailto:gromacs.org_gmx-users-request at maillist.sys.kth.se> wrote:


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Message: 2
Date: Wed, 2 Jul 2014 12:26:07 +0530
From: RINU KHATTRI <nickname.mittu at gmail.com<mailto:nickname.mittu at gmail.com>>
To: gmx-users at gromacs.org<mailto:gmx-users at gromacs.org>
Subject: [gmx-users] error in grompp command
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hello gromacs
i an working on protein ligand complex with lipid membrane (popc)

grompp -f minim.mdp -c popc128.gro -p topol_popc.top -o em.tpr -maxwarn -1

after this fatal error atomtypes CA not found
and only md.oonly mdout is formed
kindly help


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