Sending idocs from SAP ECC to Data Services

Hi,

I have a problem when I send IDOCs to DS in a batch job.

I generate the idoc file in sap (t-code WE63) and I have fill the field Idoc file into the idcoc box in data services. Well, when I execute I receive this error:

17044 16168 R3C-054010 8/1/2013 10:07:55 AM Processing the IDoc from the file <D:/DS_FILES/XML IDOCS/WBBDLD02.txt> failed because Data Services no longer supports its

17044 16168 R3C-054010 8/1/2013 10:07:55 AM format. Regenerate the IDoc file in SAP and replace the file.

I dont really know what is my mistake.

Thanks in advance.