[lammps-users] ghost atoms error

Dear LAMMPS usres,
I have installed mpi, fftw and lammp correclty, but whenvere I run lammps it promp error like:

localhost:/home/sabi/Desktop/work/cylinder# mpirun -np 4 lmp_linux<in.cylinder
LAMMPS (7 Jul 2009)
Reading restart file …
orthogonal box = (-10 -10 0) to (10 10 120)
1 by 1 by 4 processor grid
24129 atoms
Resetting per-atom state of Fix 3 Style wall/gran from restart file info
Resetting per-atom state of Fix z Style wall/gran from restart file info
Particle insertion: 63 every 12721 steps, 5871 by step 6183054
ERROR: Pair granular requires ghost atoms store velocity

please anybody can solve my problem
thanks…
Sabi

a) if you're running the most current version of LAMMPS (fully patched)
then you may not want to be reading old restart files

b) the communicate vel yes command is the new one that
will overcome the error you are seeing

Steve