[gradsusr] Regarding errors in getting the plot

[Mohanmurali Krishna]

Sir/madam
i m trying to plot MSLP, Windvectors at different levels & geopotential
from (FNL dataset) in a single plot for each time step.

the executing script-

'reinit'
*'set display color white'
'clear'
'enable print pres.meta'
'open ./fnlp25.ctl'
'set mpdset hires'
'set map 1 1 6'
tt=1
while(tt<=24)
'set t 'tt
'q time'
'set grid off'
'set grads off'
*'set xlopts 1 4 0.15'
*'set ylopts 1 4 0.15'
*'set clopts -1 3 0.14'
**************MSLP******************
'set lat 0 35'
'set lon 55 130'
'set gxout contour'
*'set ccolor 2'
'set z 1'
'set cthick 3'
'set cint 3'
'd prmslmsl/100'
******Wind vector*****************
'set z 4'
'set gxout vector'
'set arrscl 0.2 10'
'set ccolor 1'
'set cthick 4'
'set cint 1'
'd skip(ugrdprs,4,4);vgrdprs'
*************Geopotential(gpm)******
*'set gxout shaded'
*'d hgtprs'
*'cbarn'
'draw title Mean sea level pressure (hPa)and Wind vector at 925 hPa level'
'print'
'clear'
tt=tt+1
endwhile
'quit'


here i m attaching error. please look into that hope any one of yu might
resolve my problem
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