How to fix the Oracle error ORA-27420: Following message from string interval interpreter?

In this post, you’ll learn more about the Oracle ErrorORA-27420: Following message from string interval interpreter with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-27420: Following message from string interval interpreter

Reason for the Error ORA-27420: Following message from string interval interpreter

The repeat interval or calendar definition was not recognized as valid syntax.

How to fix the Error ORA-27420: Following message from string interval interpreter ?

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

Specify a valid repeat interval.