[gmx-users] AFM Pulling Error

[Berk Hess]

>From: Bob Johnson <robertjo at physics.upenn.edu>
>Reply-To: Discussion list for GROMACS users <gmx-users at gromacs.org>
>To: GROMACS Mailing List <gmx-users at gromacs.org>
>Subject: [gmx-users] AFM Pulling Error
>Date: Fri, 02 Dec 2005 10:19:55 -0500
>
>Hello everyone,
>For some reason I get the following error message when using AFM pulling:
>
>Groups: 5P
>Pull code using absolute reference.
>Using 1 pull groups
>Using distance components 0 0 1
>
>Fatal error: Can't find group  in the index file
>
>
>I looked in the pullout.ppa file and it has the following:
>; Groups to be pulled
>group_1                  = 5P
>group_2                  =
>group_3                  =
>group_4                  =
>
>Additionally, my index file that I'm passing to mdrun has this:
>
>[ 5P ]
>  32
>
>I don't know why it has an empty string in the error message. Any ideas?
>Thanks,

Which Gromacs version is this?
I think it should work in 3.3.
Maybe specifying a reference group might solve the problem
(while still using an absolute reference).

Berk.