用ADS2012.08做功分器的仿真优化时出现以下错误，请问怎么....

Simulation Messages
Error detected by hpeesofsim during Nominal Optimization `Optim1'.
    Swept vectors/matrices not supported in an OptimGoal/YieldSpec. Must use a (swept) scalar
Error detected by hpeesofsim during Nominal Optimization `Optim1'.
    'Optim1[1]': circuit simulation fails.
Error detected by hpeesofsim during Nominal Optimization `Optim1'.
    Optim1[1] can't do cost evaluation.
Error detected by hpeesofsim during Nominal Optimization `Optim1'.
Status / Summary

hpeesofsim (*) 390.shp Nov 21 2012 (built: 11/21/12 12:56:57)
Copyright Agilent Technologies, 1989-2012.
OPTIM Optim1[1] <equal_divider_lib:equal_divider_Optimization:schematic>  optIter=(0->100)
SP Optim1[1].SP1[0] <equal_divider_lib:equal_divider_Optimization:schematic>  optIter=0  freq=(900 MHz->1.1 GHz)

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