diff --git a/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs b/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
index 701c9baa8..a2bedef61 100644
--- a/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
@@ -204,7 +204,7 @@ namespace SqlSugar
         {
             get
             {
-                throw new NotSupportedException();
+                throw new NotSupportedException(" Sqlite no support default value");
             }
         }
         protected override string IsAnyIndexSql
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
index c9245c7a0..28be9104e 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
@@ -250,7 +250,7 @@ namespace SqlSugar
             }
         }
 
-        protected override string AddDefaultValueSql => throw new NotSupportedException();
+        protected override string AddDefaultValueSql => throw new NotSupportedException(" Sqlite no support default value");
         #endregion
 
         #region Methods