Error out if using fix pour with the KOKKOS package

src/GRANULAR/fix_pour.cpp

@@ -53,6 +53,8 @@ FixPour::FixPour(LAMMPS *lmp, int narg, char **arg) :
 {
   if (narg < 6) error->all(FLERR,"Illegal fix pour command");
 
+  if (lmp->kokkos) error->all(FLERR,"Cannot yet use fix pour with the KOKKOS package");
+
   time_depend = 1;
 
   if (!atom->radius_flag || !atom->rmass_flag)

src/GRANULAR/fix_pour.h

@@ -89,6 +89,10 @@ Self-explanatory.  Check the input script syntax and compare to the
 documentation for the command.  You can use -echo screen as a
 command-line option when running LAMMPS to see the offending line.
 
+E: Cannot yet use fix pour with the KOKKOS package
+
+This feature is not yet supported.
+
 E: Fix pour requires atom attributes radius, rmass
 
 The atom style defined does not have these attributes.