diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MapperExpressionResolve.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MapperExpressionResolve.cs
index 0973d5107..1b5cabb03 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MapperExpressionResolve.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MapperExpressionResolve.cs
@@ -318,11 +318,11 @@ namespace SqlSugar
 
         void Error01()
         {
-            Check.Exception(mappers == null, ErrorMessage.GetThrowMessage(expression.ToString() + "no support", "当前表达式" + expression.ToString() + " 不支持，查看导航是否配置正确等 "));
+            Check.Exception(mappers == null, ErrorMessage.GetThrowMessage(expression.ToString() + "no support Check if the navigation is configured correctly or Includes() is missing", "当前表达式" + expression.ToString() + " 不支持，查看导航是否配置正确等或者缺少Includes() "));
         }
         void ThrowTrue(bool isError)
         {
-            Check.Exception(isError, ErrorMessage.GetThrowMessage(expression.ToString() + "no support", "不支持表达式" + expression.ToString() + "  ，查看导航是否配置正确等 "));
+            Check.Exception(isError, ErrorMessage.GetThrowMessage(expression.ToString() + "no support Check if the navigation is configured correctly or Includes() is missing", "不支持表达式" + expression.ToString() + "  ，查看导航是否配置正确等或者缺少Includes() "));
         }
     }
 }
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