[gmx-users] Problem with topology generation by Amber 12 ff

[Justin Lemkul]

On 12/4/17 1:45 AM, Amir Zeb wrote:
> Hello gmx users,
>
> I have generated topology and coordinate files of ZN metalloprotein by
> Amber 12 ff. Now I am facing this following issue at grompp run:
>
> "ERROR 1 [file topol_Protein_chain_A.itp, line 49741]:
>    No default Improper Dih. types"
>
> If I use another ff like Amber99SB- ILDN, there is no such error. I
> searched out the solution on google but could not find the answer.
>
> Please help me how to fix this issue?

Which atoms are in that interaction on that line, and should there be 
such an interaction there?

-Justin

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Justin A. Lemkul, Ph.D.
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Virginia Tech Department of Biochemistry

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