ERROR: Unknown identifier in data file

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1

Dear Lammps Users,

I want to simulate water confined in a nanotube using Lammps,however when I try to initate simulation I

get error on the first line of Pair coefficients itself.I tried going through previous mails but I could not remove the error.

Error message goes as :

ERROR: Unknown identifier in data file: 1 0.0860000 3.400 (…/read_data.cpp:780)

Any suggestion would be extremely helpful.
LAMMPS data file.
162 atoms
216 bonds
6 angles
0 dihedrals
0 impropers
3 atom types
2 bond types
1 angle types
0 dihedral types
0 improper types
0.000000 15.00000 xlo xhi
0.000000 15.00000 ylo yhi
0.000000 15.00000 zlo zhi

Pair Coeffs

1 0.0860000 3.400 #C
2 0.0000000 1.000 #H
3 0.1553000 3.166 #O

Bond Coeffs

1 400.000 1.000 # H-O
2 900.000 1.420 # C-C

Angle Coeffs

2

Dear Lammps Users,

I want to simulate water confined in a nanotube using Lammps,however when I try to initate simulation I
get error on the first line of Pair coefficients itself.I tried going through previous mails but I could not remove the error.

Look at the documentation for the read_data command. Your file is not correct. Lines starting with # are ignored, but you have important section heads in them.

Axel