diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/RECIST1Point1CalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/RECIST1Point1CalculateService.cs
index 9142ba9e9..8e6eb6a99 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/RECIST1Point1CalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/RECIST1Point1CalculateService.cs
@@ -307,7 +307,7 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
             IEnumerable<string> measureDataList = rowAnswerList.Where(x => !unableEvaluateRowIds.Contains(x.Id)).Select(x => x.OrderMark + x.RowIndex.GetLesionMark()).ToList();
 
 
-            if (measureDataList.Count > 0)
+            if (measureDataList.Count() > 0)
             {
                 errorMassage += $" 病灶{ string.Join(',', measureDataList)}不存在标记,";
             }