Getting error ,The multi-part identifier "INItemClass.ItemClassCD" could not be bound in acumatica in this query

     public PXFilteredProcessingJoin<TSFixedDemand, TSProductionOrdersCreateFilter,
         InnerJoin<InventoryItem,
     On<InventoryItem.inventoryID, Equal<TSFixedDemand.inventoryID>>,
 LeftJoin<SOOrder,
     On<SOOrder.noteID, Equal<TSFixedDemand.refNoteID>>,
 LeftJoin<SOLineSplit,
     On<SOLineSplit.planID, Equal<TSFixedDemand.planID>>,
 LeftJoin<SOLine,
     On<SOLine.orderType, Equal<SOLineSplit.orderType>,
     And<SOLine.orderNbr, Equal<SOLineSplit.orderNbr>,
     And<SOLine.lineNbr, Equal<SOLineSplit.lineNbr>>>>,
 LeftJoin<INItemClass,
     On<INItemClass.itemClassID, Equal<InventoryItem.itemClassID>>,
 LeftJoin<SOOrderType,
     On<SOOrderType.orderType, Equal<SOOrder.orderType>>,
 LeftJoin<TSProdFormulaMTranSplit, On<TSProdFormulaMTranSplit.planID, Equal<TSFixedDemand.planID>>
   , LeftJoin<TSProdBOMMtranSplit, On<TSProdBOMMtranSplit.planID, Equal<TSFixedDemand.planID>>>
/* , LeftJoin<TSProdBOMMtranSplit, On<TSProdBOMMtranSplit.planID, Equal<TSFixedDemand.planID>>>*/>>>>>>>,
 Where<
     Where<TSFixedDemand.supplyPlanID, IsNull,
         And2<Where<TSFixedDemand.inventoryID, Equal<Current<TSProductionOrdersCreateFilter.inventoryID>>,
             Or<Current<TSProductionOrdersCreateFilter.inventoryID>, IsNull>>,
         And2<Where<TSFixedDemand.siteID, Equal<Current<TSProductionOrdersCreateFilter.siteID>>,
                 Or<Current<TSProductionOrdersCreateFilter.siteID>, IsNull>>,
         And2<Where<SOOrder.customerID, Equal<Current<TSProductionOrdersCreateFilter.customerID>>,
                 Or<Current<TSProductionOrdersCreateFilter.customerID>, IsNull>>,
         And2<Where<TSFixedDemand.planDate, GreaterEqual<Current<TSProductionOrdersCreateFilter.requestedOnStartDate>>,
                 Or<Current<TSProductionOrdersCreateFilter.requestedOnStartDate>, IsNull>>,
         And<Where<TSFixedDemand.planDate, LessEqual<Current<TSProductionOrdersCreateFilter.requestedOnEndDate>>,
                 Or<Current<TSProductionOrdersCreateFilter.requestedOnEndDate>, IsNull>>>
         //, And<Where<INItemClass.itemClassCD, Like<Current<TSProductionOrdersCreateFilter.itemClassCDWildcard>>,
         //        Or<Current<TSProductionOrdersCreateFilter.itemClassCDWildcard>, IsNull>>>
         >>>>>>> FixedDemand;