Error file itp

GROMACS version:
GROMACS modification: Yes/No
Here post your question please I want help to solve a problem during a calculation I inserted the solvent molecules and I want to insert other solute molecules in the same simulation box …but there is an error in the solute itp file.

Could you share the exact commands you used and all the outputs (errors, notes, warnings, etc.) you got? It’s a bit unclear just from this message what you’re trying to do and what’s going wrong.