How to fix the Oracle error ORA-24167: incompatible rule engine objects, cannot downgrade?

In this post, you’ll learn more about the Oracle ErrorORA-24167: incompatible rule engine objects, cannot downgrade with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-24167: incompatible rule engine objects, cannot downgrade

Reason for the Error ORA-24167: incompatible rule engine objects, cannot downgrade

there are rule engine objects in the database that cannot be downgraded.

How to fix the Error ORA-24167: incompatible rule engine objects, cannot downgrade ?

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

check utlincmp.sql and remove all incompatible rules engine objects before downgrade.