Oracle Message SQL*Loader-00480 - EXPRESSION may not be used with elements of a collection.

ERROREXPRESSION may not be used with elements of a collection.
CAUSEThe EXPRESSION keyword is followed by a required SQL string expression and is used to load a column with the result of the SQL string expression instead of with a value from the input data file. However, this capability is not allowed with elements of a collection.
ACTIONRemove the EXPRESSION keyword and associated SQL string from the collection element in the control file.