Re: [AMBER] CPPTRAJ Segmentation Fault with modified topology file

From: Chris Lee <>
Date: Mon, 20 Dec 2021 21:40:20 +0000

Hi Dan,

I don't know if CPPTRAJ has its own version releases separate from amber, but I am using amber18.

From: Daniel Roe <>
Sent: Monday, December 20, 2021 2:06 PM
To: AMBER Mailing List <>
Subject: Re: [AMBER] CPPTRAJ Segmentation Fault with modified topology file

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Which version of cpptraj?


On Mon, Dec 20, 2021 at 1:58 PM Chris Lee <>

> Hi All,
> I've recently used the ff14IDP force field (code found here:
>;;sdata=0CEKhWq56Z7u%2B1UHQhaM1l9LVFv5MuKhJksV43%2FcGrM%3D&amp;reserved=0) to run some MD. The actual
> simulation was completed successfully without any issues; however, when I
> try to analyze the trajectory using CPPTRAJ, I get a Segmentation Fault
> error message after trying to load the topology file via the "parm" command
> and CPPTRAJ exits without any further details. I can send the topology file
> in question if requested. Any help would be appreciated.
> Thanks,
> Chris
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