I have just started learning lammps. I prepared an input for MoS2, and I set REBO potential for pair _coeff and pair_style, but I gave this error:
pair_coeff * * MoS.REBO.set5b M S
ERROR: Incorrect args for pair coefficients (src/MANYBODY/pair_airebo.cpp:198)
Last command: pair_coeff * * MoS.REBO.set5b M S}
would you help me to solve this problem?