What should I do when it appears like

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1

GROMACS version: 2021
GROMACS modification: Yes/No
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Hi!
I am trying KALP-15 tutorial with a protein of interest, what should i do if something like below appears?

Generated 165 of the 1596 non-bonded parameter combinations

ERROR 1 [file dppc.itp, line 7]:
Atomtype LC3 not found

There was 1 note

Program: gmx grompp, version 2021.4
Source file: src/gromacs/gmxpreprocess/toppush.cpp (line 1409)

Fatal error:
There was 1 error in input file(s)

For more information and tips for troubleshooting, please check the GROMACS
website at Errors - Gromacs

2

Hi,
You have LC3 unknown atom type in the input configuration file. You should add the corresponding force field parameter of that atom type to the force field.

3

If you have already completed the tutorial, you have a properly constructed force field. If not, then make sure to carefully follow all the indicated steps to incorporate the lipid atom types into the force field. LC3 is a lipid atom type, which means you have not added the parameters for this type to the force field.