Issues with visualizing the model using VMD

Dear LAMMPS users,

Hi, I coded a kaolinite surface file and also a water box file. I was able to run these files individually using VMD. The specific command is -vmd -atomstyle “full” -nocheck FILENAME.

I used -nocheck since I haven’t write the pair_coeff. But when I tried to visualize the two models together the terminal showed:

psfplugin) WARNING: PSF file is incomplete, no angles, dihedrals,
psfplugin) impropers, or cross-terms will be written.
Info) Opened coordinate file system.psf for writing.
Info) Finished with coordinate file system.psf.

Why this doesn’t work out? Thanks!