Field "fieldname" in Table "tablename" has not been explicitly selected in AX 2012

Hi all,

I've a Dynamics AX 2012 installation in my enviroment. When I open several forms (like Target Entities in Data Import Export Framework, or CustTrans, or VendTrans) I receive this error: Field "fieldname" in Table "tablename"  has not been explicitly selected in AX 2012.

Can you tell me what can be the cause of this error?