How to fix the Oracle error ORA-40302: invalid classname string in cost matrix specification?

In this post, you’ll learn more about the Oracle ErrorORA-40302: invalid classname string in cost matrix specification with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-40302: invalid classname string in cost matrix specification

Reason for the Error ORA-40302: invalid classname string in cost matrix specification

Actual or predicted classname specified is not present in training data

How to fix the Error ORA-40302: invalid classname string in cost matrix specification ?

You can fix this error in Oracle by following the below steps

Provide valid classname(s) in cost matrix specification