[gmx-users] density map calculation of lipid around 10 angstrom of protein

[SHAHEE ISLAM]

hello
i am trying to calculate 2D number-density maps of lipid around 10 angstrom
of protein. My system consist both coarse grained protein and lipid (using
martini force field).the command is gmx densmap -f *.xtc -s *.tpr -n *.ndx
-aver z -bin 0.02 -xmin -1 -xmax -1 -o *.xpm
but the error i am getting is
hi(0.000000)<=lo(0.000000)
can anyone please guide me about this error.
thanking you
shahee