[gmx-users] Error in trjconv

Justin A. Lemkul jalemkul at vt.edu
Wed Oct 27 16:36:17 CEST 2010

Sai Pooja wrote:
> Hi,
> While using trjconv I get this error:
> VMD_PLUGIN_PATH not set. Using default location:
> /usr/local/lib/vmd/plugins/*/molfile
> No VMD Plugins found
> Set the environment variable VMD_PLUGIN_PATH to the molfile folder 
> within the
> VMD installation.
> The architecture (e.g. 32bit versus 64bit) of Gromacs and VMD has to match.
> -------------------------------------------------------
> Program trjconv, VERSION 4.5.1
> Source code file: trxio.c, line: 863
> Fatal error:
> Not supported in read_first_frame: nanorest_1_nvt.tpr
> Can anyone help in thsi regard?

Without your command line, it's hard to say exactly what went wrong (HINT: 
always provide your exact command when a tool fails), but based on the fact that 
trjconv is trying to read a frame (a trajectory operation) from a .tpr file and 
invoking the VMD conversion routines, I'd suspect you've passed a .tpr file to 
-f instead of -s.


> Pooja
> -- 
> Quaerendo Invenietis-Seek and you shall discover.


Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080


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