AMBER99SB-ILDN warning alert

Dear Bioexcel users,

I am using the AMBER99SB-ILDN force field for simulation. While using pdb2gmx, I get a warning WARNING: Duplicate line found in or between hackblock and rtp entries.
I don’t get this warning while using other force fields like AMBER99SB or AMBER99.

I don’t understand why this warning is coming for the AMBER99SB-ILDN force field and not for others.

Can anyone suggest why this warning is coming for this specific force field and how I can remove this warning?

Thanks in advance,
Brijesh Saraswat

Dear Brijesh,
GROMACS Forum would be a better place to post your queries.
And please post the full pdb2gmx screen output in case of such queries.

Dear Pallav,
Thanks for your reply.
I have posted this question on gromacs forum also.

Here is the screen output for pbd2gmx.

Please suggest if you anything about this problem.


This is not a pmx related issue. If this force field is shipped with the official gromacs version, you could file a bug on the gromacs gitlab page.