用ADS优化出错

有人说是破解不完全的问题，请问是什么原因，以下是出错信息：
Simulation / Synthesis Messages
Error detected by hpeesofsim during Nominal Optimization 'Optim1'
OptimGoal/YieldSpec independent variable 'freg' not found in result data...
Status / Summary
hpeesofsim (*) 331.200 May  6 2008 (built: 05/06/08 00:26:15)
Copyright Agilent Technologies, 1989-2008.
OPTIM Optim1[1] <F:\ADS\filter_prj\networks\cesc>  optIter=(0->100)
SP Optim1[1].SP1[0] <F:\ADS\filter_prj\networks\cesc>  optIter=0  freq=(2.7 GHz->3.4 GHz)
.Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000008) OR UserValue > MaxRecommendValue(0.080000) for 'W' in `CLin1'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000080) OR UserValue > MaxRecommendValue(0.008000) for 'S' in `CLin1'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000008) OR UserValue > MaxRecommendValue(0.080000) for 'W' in `CLin2'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000080) OR UserValue > MaxRecommendValue(0.008000) for 'S' in `CLin2'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000008) OR UserValue > MaxRecommendValue(0.080000) for 'W' in `CLin3'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000080) OR UserValue > MaxRecommendValue(0.008000) for 'S' in `CLin3'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000008) OR UserValue > MaxRecommendValue(0.080000) for 'W' in `CLin4'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000080) OR UserValue > MaxRecommendValue(0.008000) for 'S' in `CLin4'
Warning detected by hpeesofsim during SP analysis 'SP1'.
    UserValue(1.000000) < MinRecommendValue(0.000008) OR UserValue > MaxRecommendValue(0.080000) for 'W' in `CLin5'
......................................................................
-------------------------------------------------------------------------------
Simulation finished with errors.
-------------------------------------------------------------------------------
Resource usage:
    Total stopwatch time: 1.56 seconds.
--------------------
Simulation terminated due to error.
--------------------

查了半天，终于知道为什么出错了

为什么啊?我也想知道原因 楼上的是不是因为没有设置好variable 'freq' ?

原因一是我把freq打成了freg
原因二是变量后面没加单位

我也是没加单位，而且加完单位还是不行，原来是中间忘了加空格！