Ocean Script Problem

The code used to be loaded well in another server and it is a simulation script for an LNA circuit. Right now I just paste the code and hopefully you are interested.When I was loading the ocean script, error came out as:

  *Error* ilGetString: arg must be symbol or string - nil

This may be due to license problem, like any features not supported ,etc. Or maybe it is a format error considering skill language.I provide the problematic sample.ocn code in two parts: Run-through part and error-warning part. I am a starter and hope any one give a help. Appreciate your participating.

 The code can be successfully loaded the first half:

simulator( 'spectre )
design(  "./netlist")
resultsDir( "./schematic" )
modelFile(  "./mitllfdsoi0p18um/MP6_2p2/models/spectre/nom/mitllfdsoi0p18um.scs")
desVar(   "cw3" 10f )
desVar(   "cw1" 10f )
desVar(   "rw3" 1 )
desVar(   "rw1" 1 )
desVar(   "rls" 2 )
desVar(   "rlg" 7 )
desVar(   "rld" 6 )
desVar(   "rg" 0.5 )
desVar(   "Ls" .65n )
desVar(   "Lg" 2n )
desVar(   "Ld" 2.3n )
desVar(   "cds" 28.8f )
desVar(   "Cd" 160f )
desVar(   "Co" 120f )
desVar(   "cw4" "cw3" )
desVar(   "cw2" "cw1" )
desVar(   "rw4" "rw3" )
desVar(   "rw2" "rw1" )
Cnominal = desVar( "Cnominal" 0 )
Rnominal = desVar( "Rnominal" 0 )
R14 = desVar( "R14"  0)
      desVar( "C14" Cnominal )
R18 = desVar( "R18"  0)
      desVar( "C18" Cnominal )
R15 = desVar( "R15"  0)
      desVar( "C15" Cnominal )
R19 = desVar( "R19"  0)
      desVar( "C19" Cnominal )
R24 = desVar( "R24"  0)
      desVar( "C24" Cnominal )
R23 = desVar( "R23"  0)
      desVar( "C23" Cnominal )
R25 = desVar( "R25"  0)
      desVar( "C25" Cnominal )
R26 = desVar( "R26"  0)
      desVar( "C26" Cnominal )
desVar(   "frf" 5.6G )
desVar(   "df" 10M )
desVar(   "frf2" "frf+df" )
desVar(   "prf" -30 )
temp( 27 )
ResDir = "./sample"
resultsDir(ResDir)
sprintf( resultsFile "%s.txt" ResDir )
of = outfile(resultsFile)
startPoint = 2
stopPoint = 2
totalPoints = 1
resistorList = list("rls")

But when the second half below is loaded, the error came out". The second half is:

foreach( sweepVariable resistorList

         paramAnalysis(sweepVariable ?start startPoint ?stop stopPoint ?lin totalPoints)

     ;S-Parameter analysis
         analysis('sp ?ports list("/PORT1" "/PORT2")  ?start "400M"  ?stop "8G" 
        ?lin "601"  ?donoise "yes"  ?oprobe "/PORT2"  ?iprobe "/PORT1"  )

;1dB compression point and IIP3
;
;Periodic Steady State
         analysis('pss ?fund "frf"  ?harms "20"  ?errpreset "moderate" 
         ?param "prf"  ?start "-30"  ?stop "10"  ?lin "20"  )
         analysis('pac ?sweeptype "absolute"  ?start "frf2"  ?stop ""  ?maxsideband "2"  )

         paramRun()

         openResults(ResDir)
;selectResults('sp)

;;;;;5.6GHz
         freq = 5.6e+09

;Input Port Reflection (S11)
;measured @ 5.6G (lower s11 is better)
         s11 = value(dB20(aaSP(1 1)) freq)
;         s12 = value(dB20(aaSP(1 2)) freq)
;         s21 = value(dB20(aaSP(2 1)) freq)
         s22 = value(dB20(aaSP(2 2)) freq)
;minimum input reflection in frequency range simulated
;minreflection = ymin(dB20(aaSP(1 1)))
;other S-parameters

;Noise Figure
         noiseFigure = value(dB10(NF()) freq)
;noiseFigureMin = value(dB10(NFmin()) freq)

;Gain
;         transducerPowerGain = value(dB10(GT()) freq)
;         operatingPowerGain = value(dB10(GP()) freq)
         availablePowerGain = value(dB10(GA()) freq)
        
;selectResults('sweeppss_fd-sweep)
;         onedBcompPt = compressionVRI((v("/net016" ?result "pss_fd") - 0.0) '1 ?rport resultParam("PORT2:r" ?result "pss_fd") ?gcomp 1)
;selectResults('sweeppss_pac-sweeep)
         iip3 = ipnVRI((v("/net016" ?result "pac") - 0.0) '-2 '0 ?rport resultParam("PORT2:r" ?result "pac"))

;;;;;header
;         fprintf(of
;          "%s\ts11\ts12\ts21\ts22\
;\tnoiseFigure\ttransducerPowerGain\toperatingPowerGain\tavailablePowerGain\tonedBcompPt\tiip3\n" sweepVariable)
         fprintf(of "%s\ts11\ts22\tnoiseFigure\tavailablePowerGain\tiip3\n" sweepVariable)
;         ocnPrint( s11 s12 s21 s22 noiseFigure transducerPowerGain operatingPowerGain availablePowerGain onedBcompPt iip3 ?output of)
         ocnPrint( s11 s22 noiseFigure availablePowerGain iip3 ?output of)
        
         ) ; foreach(sweepVariable resistorList

drain(of)
close(of)

By the way, our department has just updated its cadence license packet which was actually problematic.

Thanks a lot before hand and after.

Steven.L