Query regarding pair_style hybrid

Dear all,

I am currently having a problem with pair_style hybrid.
I want to simulate water on iron surface and I have entered the following

pair_style hybrid eam/fs lj/cut/tip4p/long 1 2 1 1 0.125 8.5 lj/cut 5.0 lj/cut 5.0
kspace_style pppm/tip4p 1.0e-4

pair_coeff * * eam/fs Fe_mm.eam.fs Fe NULL NULL
pair_coeff 1 1 lj/cut/tip4p/long 0.0070575098 3.164350
pair_coeff 1 2 lj/cut/tip4p/long 0.0000 0.0000
pair_coeff 2 2 lj/cut/tip4p/long 0.0000 0.0000
pair_coeff 1 3 lj/cut 1 0.001994627885 2.865181
pair_coeff 2 3 lj/cut 2 0.000000000000 0.000000

But it is giving the error msg as

Incorrect args for pair coefficients (…/pair_eam_fs.cpp:52)

Please can you help me with possible mistake that I might be making or the reason for such an error message

Thank you

Prerna Khullar

Dear all,

I am currently having a problem with pair_style hybrid.
I want to simulate water on iron surface and I have entered the following

pair_style hybrid eam/fs lj/cut/tip4p/long 1 2 1 1 0.125 8.5 lj/cut
5.0 lj/cut 5.0
kspace_style pppm/tip4p 1.0e-4

pair_coeff * * eam/fs Fe_mm.eam.fs Fe NULL NULL
pair_coeff 1 1 lj/cut/tip4p/long 0.0070575098 3.164350
pair_coeff 1 2 lj/cut/tip4p/long 0.0000 0.0000
pair_coeff 2 2 lj/cut/tip4p/long 0.0000 0.0000
pair_coeff 1 3 lj/cut 1 0.001994627885 2.865181
pair_coeff 2 3 lj/cut 2 0.000000000000 0.000000

But it is giving the error msg as

*Incorrect args for pair coefficients (../pair_eam_fs.cpp:52)*

Please can you help me with possible mistake that I might be making or the
reason for such an error message

​there is not enough information here to give a definite answer. while
there are some ill-conceived choices in the input segment shown, it is
syntactically correct and should not create an error unless there are other
parts of the input requiring adjustments.

http://lammps.sandia.gov/guidelines.html

axel.​