[gmx-users] g_tcaf error message

[Andy Chao]

Dear GROMACS Users:

I tried to use the g_tcaf command to calculate the viscosity of the ionic
liquid.  I got the following error message while using the following
command:

g_tcaf -f NPT.trr -s NPT.tpr -n index.ndx -o tcaf.xvg

The error message is the following:

trn version: GMX_trn_file (single precision)
Last frame       -1 time 0.000
Last frame       -1 time 14342.000
Density = 944.3 (Kg/m^3)
Segmentation fault (core dumped)

Would you please let me know why?  How to fix this problem?

Thanks!

Andy