[gmx-users] lipid tutorial problem

[prashant kurkute]

Dear all,
I am very new to GROMACS.
The my problem may be a very basic and stupid but very big for me!!!!!!..
I am performing Justin Lemkul  Lipid tutorial
(http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin/gmx-tutorials/membrane_protein/index.html)
and I am upto the 3rd stage.
But after  giving following command

grompp -f minim.mdp -c dppc128.gro -p topol_dppc.top -o em.tpr

I got the error like


Fatal error:
Atomtype CA not found

Please give me some valuable suggetion.

Thank you in advance...