Getting Error "XXX element with that name already exists" with SAP NCo 3

Hi Guys,

I have tried to use NCo 3.0 to calling RFC/BAPI that working well with some function but

the function "BAPI_ABSENCE_SIMULATECREATION" that not working. The exception message

is "Cannot add EMPLOYEENUMBER to FUNCTION BAPI_ABSENCE_SIMULATECREATION: an element with that name already exists". This is error from NCo 3.0. right ? or I do something wrong. Could anyones please suggest ?

Thank you in advance.

My code error at the line:

sapFunc = sapRfcDest.Repository.CreateFunction("BAPI_ABSENCE_SIMULATECREATION")

My dll version:

sapnco = 3.0.0.42

sapnco_utils = 3.0.0.42