Error when trying to use oceanEval

Hello,
I am trying to run a monte carlo simulation, using the following script:
simulator lang=spectre
include "params.inc"
include "corners.mc.scs"
include "6T.scs"
include "Transformation.scs"// Library name: SRAM_project
// Cell name: 6T_SNM
// View name: schematic
VVBp (VBp GND) vsource dc=vbp type=dc
VVBn (VBn GND) vsource dc=vbn type=dc
Vu (u GND) vsource dc=u type=dc
VVDD (VDD GND) vsource dc=vdd type=dc
VGND (GND 0) vsource dc=0 type=dc
Trans (F1in F1out GND u v1 F2in F2out v2) Transformation
DUT (GND VDD GND F1in2 F2out2 F1out2 F2in2 VBn VBp VDD VDD) \
        SRAM_project_6T_SRAMtransistors_forSNM_schematic _par0=PUN
simulatorOptions options reltol=1e-3 vabstol=1e-6 iabstol=1e-18 temp=27 \
    tnom=25 scalem=1.0 scale=1.0 gmin=1e-21 rforce=1 maxnotes=5 maxwarns=5 \
    digits=5 cols=80 pivrel=1e-3
mc1 montecarlo firstrun=1 numruns=10 seed=1 \
    variations=all donominal=no saveprocessparams=yes scalarfile="mcdata" {
    dcOpInfo info what=oppoint where=rawfile
    dcop dc param=u start=-vdd/(2**0.5) stop=vdd/(2**0.5) write="/home/giterman/2014sram_project/spectre.dc" \
    oppoint=rawfile maxiters=150 maxsteps=10000 annotate=status
    modelParameter info what=models where=rawfile
    element info what=inst where=rawfile
    outputParameter info what=output where=rawfile
    designParamVals info what=parameters where=rawfile
    primitives info what=primitives where=rawfile
    subckts info what=subckts  where=rawfile
    export expression=oceanEval( "ymax(v(\"v1\"))")
    }
    save VDD u v1 v2
    saveOptions options save=allpub subcktprobelvl=1
However, I keep getting the following message when using the oceanEval command: *Error* eval: undefined function - awvInitializeMps. Without this command the simulation runs with no errors.

Am I using the function incorrectly, and if so what should I fix?

Thanks