[gmx-users] problem using genbox

[Abdullah Taher Mohammed Nasr]

Hi all
I have a .pdb file for Lysozyme and I was able to get the file in 
gromacs format .gro using pdb2gmx.
I wanted to make a box with two molecules of Lysozyme. I used the 
generated .gro file and genbox for that but I got the following error 
message:
try 0fatal error: more then one residue in insert molecule.

how can I solve this problem?

thanks
Abdullah Nasr