[gmx-users] trjconv mismatch

[Jennifer Vo]

Dear All,
I have got this error while running trjconv from .xtc to .pdb file. The
System includes 8 Protein (4622 Atoms each, x8 = 36976 Atoms). 135978 is
the total number of Atoms in the System. The index.ndx was created from
md.gro file, and I Chose #1 for Protein. I don't know where is the original
error of the mismatch here
Fatal error:
Index[4622] 135978 is larger than the number of atoms in the
trajectory file (36976). There is a mismatch in the contents
of your -f, -s and/or -n files.

I would appreciate for any help.
Jennifer.