""a specific field" does not exist in this form" Deluge error message

""a specific field" does not exist in this form" Deluge error message

Dear all

I can't see what's wrong in the line 18 of this portión of code in a "on edit/on load" form action.

i would appreciate any advice



1

hide ConceptosdelDM.Documento_de_medici_n;

2

disable ConceptosdelDM.Total1;

3

disable Total_Habilitaciones;

4

disable Total_DM;

5

defaultnumber="4500056465";

6

if(input.Orden_de_Compra  ==  null)

7

{

8

                Orden_de_Compra = Orden_de_Compra[Numero == defaultnumber].ID;

9

}

10

filas = (ConceptosOC[Orden_de_Compra == input.Orden_de_Compra].Concepto_Facturable).getall();

11

filas.add(Concepto[Nombre == "VARIOS"].ID);

12

if(filas.size()  >  0)

13

{

14

                for each row1 in ConceptosdelDM

15

                {

16

                               Mselect=row1.Concepto_a_facturar;

17

                               ConceptosdelDM.Concepto_a_facturar:ui.add(filas);

18

                               row1.Concepto_a_facturar.select(Mselect);

19

                }

20

}

21

cptosdm = ConceptosDM[Documento_de_medici_n == input.Numero];


  Error at line number : 18 

'Concepto_a_facturar' does not exist in this form