How to fix the Oracle error ORA-29663: Unable to find a method that matches one or more of the functions?

In this post, you’ll learn more about the Oracle ErrorORA-29663: Unable to find a method that matches one or more of the functions with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29663: Unable to find a method that matches one or more of the functions

Reason for the Error ORA-29663: Unable to find a method that matches one or more of the functions

The EXTERNAL NAME option of one or more functions do not match any method in the defined class.

How to fix the Error ORA-29663: Unable to find a method that matches one or more of the functions ?

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

Make sure the EXTERNAL NAME option of each function matches a method in the defined in the defined class.