Hi,
Your error clearing saying you used refernced info object.
Rather than that you need to use the main info object which is referenced.
Go to RSD1, enter your info object-->display it.
in that screen look at reference area - it may shows the info object which is referenced.
Later you can that referencd one.
For example:
info obejcts 0customer and 0Cust_sales.
0cust_sales is reference of 0customer.
if want load master data to 0cust_sales then we need to load data to 0customer info object not to 0cust_sales.
in your case also same you need to find the referred info obejct and use it.
Thanks