diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT2.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT2.cs
index bf02072c6..0e92960b8 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT2.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT2.cs
@@ -24,6 +24,7 @@ namespace SqlSugar
 
         public IUpdateable<T, T2, T3> InnerJoin<T3>(Expression<Func<T, T2, T3, bool>> joinExpress)
         {
+            updateableObj.UpdateBuilder.Context.InitMappingInfo<T3>();
             UpdateableProvider<T, T2,T3> result = new UpdateableProvider<T, T2,T3>();
             result.updateableObj = updateableObj;
             var joinIno = ((QueryableProvider<T>)updateableObj.UpdateBuilder.Context.Queryable<T>()).GetJoinInfo(joinExpress, JoinType.Inner);
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT3.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT3.cs
index 3f09505d3..9113a9eac 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT3.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT3.cs
@@ -22,6 +22,7 @@ namespace SqlSugar
 
         public IUpdateable<T, T2, T3, T4> InnerJoin<T4>(Expression<Func<T, T2, T3, T4, bool>> joinExpress)
         {
+            updateableObj.UpdateBuilder.Context.InitMappingInfo<T4>();
             UpdateableProvider<T, T2, T3,T4> result = new UpdateableProvider<T, T2, T3,T4>();
             result.updateableObj = updateableObj;
             var joinIno = ((QueryableProvider<T>)updateableObj.UpdateBuilder.Context.Queryable<T>()).GetJoinInfo(joinExpress, JoinType.Inner);
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT4.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT4.cs
index c75dc6f84..678095ea6 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT4.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProviderT4.cs
@@ -21,6 +21,7 @@ namespace SqlSugar
 
         public IUpdateable<T, T2, T3, T4> SetColumns(Expression<Func<T, T2, T3, T4, T>> columns)
         {
+            updateableObj.UpdateBuilder.Context.InitMappingInfo<T4>();
             var exp = ((columns as LambdaExpression).Body as MemberInitExpression).Bindings;
             var items = ExpressionTool.GetMemberBindingItemList(exp);
             var UpdateBuilder = updateableObj.UpdateBuilder;