跑批异常 Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: 无法对 null 引用执行运行时绑定

   在 CallSite.Target(Closure , CallSite , Object )

   在 System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0)

   在 GateWay.BLL.Orders.PayFilesGenerator.Generate()

         try

             {

                 //查找distinct后的“商户&日期”

                 var map = orderDal.GetMerchantsForSettlement(_frDate, _toDate);

                 if (map == null)

                 {

                     _logHelper.WriteLog("no records");

                     return;

                 }

                 _logHelper.WriteLog("获取到{0}条“商户&日期”对儿", map.Count);

                 int i = ;

                 //遍历“商户&日期”集合，逐一查询出来订单然后生成文件

                 foreach (var p in map)

                 {

                     i++;

                     _logHelper.WriteLog("[{2}] 商户：{0}-文件日期：{1}", p.MerCode, p.Date.ToShortDateString(), i);

                     try

                     {

                         var isOK = Generate(p.MerCode, p.Date);

                         _logHelper.WriteLog("[{0}]生成文件返回{1}", i, isOK);

                     }

                     catch (Exception ex)

                     {

                         if (ex is ResponseErrorException)

                         {

                             _logHelper.WriteLog("[{0}]{1}", i, ex.Message);

                         }

                         else

                         {

                             _logHelper.WriteLog("[{0}]文件生成异常 {1}", i, ex.ToString());

                         }

                     }

                 }

             }

             catch (Exception ex)

             {

                 _logHelper.WriteLog("跑批异常 {0}", ex.ToString());
             }
39

             _logHelper.WriteLog("本次批量生成账单文件结束.");

         }