diff --git a/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt b/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt
index 219b23b..927cb2b 100644
--- a/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt
+++ b/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt
@@ -53,7 +53,7 @@ $end
 $end
             var response = _${replaceDto.ModelTypeName}Repository
                 .Queryable()
-$if(genTable.SubTableName != "" && genTable.SubTableName != null)
+$if(null != genTable.SubTableName && "" != genTable.SubTableName)
                 .Includes(it => it.Sub.MappingField(z => z.${genTable.SubTableFkName}, () => it.${replaceDto.PKName}))
 $end
 $if(genTable.SortField != "" && genTable.SortField != null)
diff --git a/ZR.CodeGenerator/CodeGeneratorTool.cs b/ZR.CodeGenerator/CodeGeneratorTool.cs
index 23d6b76..cbf5690 100644
--- a/ZR.CodeGenerator/CodeGeneratorTool.cs
+++ b/ZR.CodeGenerator/CodeGeneratorTool.cs
@@ -513,7 +513,7 @@ namespace ZR.CodeGenerator
         /// <param name="replaceDto"></param>
         private static void InitJntTemplate(GenerateDto dto, ReplaceDto replaceDto)
         {
-            //Engine.Current.Clean();
+            Engine.Current.Clean();
             dto.GenTable.Columns = dto.GenTable.Columns.OrderBy(x => x.Sort).ToList();
             bool showCustomInput = dto.GenTable.Columns.Any(f => f.HtmlType.Equals(GenConstants.HTML_CUSTOM_INPUT, StringComparison.OrdinalIgnoreCase));
             //jnt模板引擎全局变量
diff --git a/ZR.Service/System/GenTableService.cs b/ZR.Service/System/GenTableService.cs
index a9fbe81..b6d2051 100644
--- a/ZR.Service/System/GenTableService.cs
+++ b/ZR.Service/System/GenTableService.cs
@@ -60,7 +60,10 @@ namespace ZR.Service.System
             if (info != null && !info.SubTableName.IsEmpty())
             {
                 info.SubTable = GenTableRepository.Queryable().Where(f => f.SubTableName == info.TableName).First();
-                SetTableFromOptions(info?.SubTable);
+                if (info?.SubTable != null)
+                {
+                    SetTableFromOptions(info?.SubTable);
+                }
             }
             return info;
         }