Fourier dihedral question

Hey guys,
I am trying to run RAPTOR with lammps 23June2022 and it does not recognize Fourier type dihedrals (dihedral_coeff fourier). Can someone advise on that?

  1. the command is dihedral_style fourier, not dihedral_coeff fourier.
  2. the dihedral_style fourier command is part of the EXTRA-MOLECULE package and thus your LAMMPS executable must include this package to have the dihedral style available.