[gmx-users] distance analysis error

[Mario Andres Rodriguez Pineda]

Hi everbody
I'm trying to analyse an preotein simulation made in Gromacs 2018, but when
i send the command this returened to me this error:

Inconsistency in user input:
Selection 'F519' does not evaluate into an even number of positions (there
are
1 positions)

I  made this index of both CB atoms that i want measure the distance in all
MD trajectory:
[ F519 ]
1450
[ S678 ]
3976

Can someone help me?
Thanks
-- 
*MSc. MARIO ANDRÉS RODRÍGUEZ PINEDA*
*Estudiante Doctorado en Biotecnología*

*UNAL- MEDELLÍN/ IQ- USP*

*Grupo de Pesquisa em Ressonância Magnética Nuclear de Biomoléculas *
*Av. Prof. Lineu Prestes 748, Sao Paulo SP, 05508-000, Tel: + 55 11 3091
1475*