diff --git a/EOM.TSHotelManager.Common.Core/Business/Room/Room.cs b/EOM.TSHotelManager.Common.Core/Business/Room/Room.cs
index 09fb47e559c7cfbefb9e0e2168618921dab5aa3d..e5c8e8db3e8e3f9919fa032fd39a9948cece975f 100644
--- a/EOM.TSHotelManager.Common.Core/Business/Room/Room.cs
+++ b/EOM.TSHotelManager.Common.Core/Business/Room/Room.cs
@@ -62,7 +62,7 @@ namespace EOM.TSHotelManager.Common.Core
         /// 最后一次退房时间
         /// </summary>
         [SqlSugar.SugarColumn(ColumnName = "check_out_time")]
-        public DateTime CheckOutTime { get; set; }
+        public DateTime? CheckOutTime { get; set; }
         /// <summary>
         /// 房间状态ID
         /// </summary>
diff --git a/EOM.TSHotelManager.Common.Core/EOM.TSHotelManager.Common.Core.csproj b/EOM.TSHotelManager.Common.Core/EOM.TSHotelManager.Common.Core.csproj
index d3af5a1fd8fdd9951c2f56eb053c09e7dcc4313d..2d59fdb04a5cb2a4de11ed19e7d6736b88c87ce5 100644
--- a/EOM.TSHotelManager.Common.Core/EOM.TSHotelManager.Common.Core.csproj
+++ b/EOM.TSHotelManager.Common.Core/EOM.TSHotelManager.Common.Core.csproj
@@ -2,6 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
+    <GenerateDocumentationFile>True</GenerateDocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/EOM.TSHotelManager.WebApi/Startup.cs b/EOM.TSHotelManager.WebApi/Startup.cs
index a463c6d402b0da2b088399787368b76232d4a39a..ce93daa993c144d732458fd7fd7f4e0a8e143608 100644
--- a/EOM.TSHotelManager.WebApi/Startup.cs
+++ b/EOM.TSHotelManager.WebApi/Startup.cs
@@ -93,7 +93,7 @@ namespace EOM.TSHotelManager.WebApi
                 });
                 //��ȡͬ��������¸��ֲ��xmlע�ͣ�һ���ȡҵ���߼��㡢ʵ����ͽӿڲ㼴��
                 s.IncludeXmlComments(AppContext.BaseDirectory+"EOM.TSHotelManager.Application.xml");
-                s.IncludeXmlComments(AppContext.BaseDirectory+"EOM.TSHotelManager.Core.xml");
+                s.IncludeXmlComments(AppContext.BaseDirectory+"EOM.TSHotelManager.Common.Core.xml");
                 s.IncludeXmlComments(AppContext.BaseDirectory+"EOM.TSHotelManager.WebApi.xml");
                 #endregion