尝试从自定义记录中获取值，并将其设置在新的“批号编号的装配件/物料清单”项目的字段中。启动搜索以检索值时，中途遇到此错误。搜索过滤器将项目记录中的2个值与自定义记录列表中的相同值进行比较。前几行执行没有错误。关于如何解决它的任何建议。谢谢。

               /**
               * @NApiVersion 2.x
               * @NScriptType WorkflowactionScript
               * @nmoduleScope Sameaccount
               */
               define(['N/record','N/runtime','N/search'],/**
               * @param {search} search
               */
               function(search) {
               /**
               * Function to be executed when field is changed.
               *
               * @param {Object} scriptContext
               * @param {Record} scriptContext.currentRecord - Current form record
               * @param {string} scriptContext.sublistId - Sublist name
               * @param {string} scriptContext.fieldId - Field name
               * @param {number} scriptContext.lineNum - Line number. Will be undefined if not a 
               sublist or matrix field
               * @param {number} scriptContext.columnNum - Line number. Will be undefined if not a 
               matrix field
               *
               * @since 2015.2
               */
               function onaction(scriptContext) {
                  var rec = scriptContext.newRecord;

               //Get the Item's Division value
               var itemDivision = rec.getvalue('class');
               log.debug({
               title: "Get Item Division",details: itemDivision
               });

               //Get the Item's Business Function value
               var itemBusinessFunction = rec.getvalue('custitem_swr_business_function');
               log.debug({
               title: "Get Item Business Function",details: itemBusinessFunction
               });

               if(itemDivision !== '' && itemDivision !== null){

               //Look up Item Approver Function using Item's Division and Item's Business Function
               var results = search.create({
                type: 'customrecord_swr_next_approver',filters: [
                    {
                        name: 'class',operator: 'is',values: [itemDivision]
                    },{
                        name: 'custrecord_swr_business_function',values: [itemBusinessFunction]
                    }]
                })

               .run()
               .getRange({start: 0,end: 1});

                var itemApproverFunction = (results.length > 0) ? results[0].id : '';

                log.debug({
                title: "Get Approver Function",details: itemApproverFunction
                });

                //Apply acquired Item Number in transaction
                rec.setvalue(itemApproverFunction);
                   }
                }
                return {
                onaction: onaction
                };

                });