[lammps-users] Fix command

Hi,
I'd like to have two questions about running fix commands for system of my
interest
1) When I run :
fix 1 all nvt \{Tmax\} {Tmax} ${nose} ( Tmax=270, nose = 500)

Why did I get this error

Step Temp PotEng TotEng Press Volume
      93 0 -11.204073 -11.204073 -0.060250747 61263.989
ERROR: Lost atoms: original 2048 current 1672

2) When I run :

fix 2 all deform 500 x final 0.0 24.75 y final 0.0 24.75 z
final 0.0 50 units box

Why did I get this error

ERROR: Invalid fix style

FYI, I did minimize the system and use the newest version of LAMMPS.

Thanks for your help.
Ly Le

water.sw (497 Bytes)

in.nvt (1.86 KB)

data.512_rho0.03344 (30.4 KB)

restart.minimized (136 KB)