Oracle Solution for Error ora-40289

ORA-40289: duplicate attributes provided for data mining function

What triggered the Error:

A duplicate, non-nested attribute was provided as input to the data mining function. A duplicate attribute is one which is present in the model signature, occurs more than once in the USING clause after tablename expansion, and is not a collection element in a nested table column.

What should we do to fix it:

Eliminate the duplicate attribute(s).