[lammps-users] ERROR: Illegal fix nvt/npt/nph command

Dear Steve

why

fix NPT all npt 70 70 10 xyz 0.0 0.0 100.0 drag 0.2

is giving the following error?

ERROR: Illegal fix nvt/npt/nph command

I am using the latest LAMMPS 25 April 2010.

Vijay

Because the syntax for the command is incorrect, as of the 7Apr10
patch. Please see the current doc pages,

Steve