[gmx-users] grompp

[Meenakshi Rajput]

Hi gromacs users
I run the grompp command
(grompp_d -v -f minim.mdp -c sol.gro -o min.tpr -p hsa.top)
 to generate .tpr file but i got the following error
Fatal error:
number of coordinates in coordinate file (sol.gro, 140012)
             does not match topology (hsa.top, 140027)
When I opened gro file, only protein and sol molecules are seen in .gro
file but no ligand molecules. I dont know why it is happening..
Can anybody help me?