Dear lammps users

I tried to use lattice-Boltzmann in my simulation as well as i used last version of lammps
but this error happened:
group sss type 1

fix 1 sss lb/viscous
ERROR: Unknown fix style (…/modify.cpp:793

any help would be appreciated.


See the packages documentation on how to install user supplied packages.

The package you need is USER-LB