取成交量出错，提示cannot load indicator 'Moving Average' [4002]

[seaman_zgs]

   //取6、36日成交均量

   int volAverage1 = iMA(_Symbol, _Period, 6, 0, MODE_SMA,EMPTY_VALUE);

   int volAverage2 = iMA(_Symbol, _Period, 36, 0, MODE_SMA,EMPTY_VALUE);

   //int volAverage1 = iVolumes(_Symbol,6,VOLUME_REAL);

   //int volAverage2 = iVolumes(_Symbol,36,VOLUME_REAL);

   ArraySetAsSeries(myVolAverageArray1,true);

   ArraySetAsSeries(myVolAverageArray2,true);   

   CopyBuffer(volAverage1,0,0,3,myVolAverageArray1);

   CopyBuffer(volAverage2,0,0,3,myVolAverageArray2);

   cannot load indicator 'Moving Average' [4002]

[seaman_zgs]

在线等大师！