How to fix the Oracle error LPX-00257: invalid children specification in element declaration?

In this post, you’ll learn more about the Oracle ErrorLPX-00257: invalid children specification in element declaration with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

LPX-00257: invalid children specification in element declaration

Reason for the Error LPX-00257: invalid children specification in element declaration

Cause: The ‘children’ specification in an element declaration was invalid.

How to fix the Error LPX-00257: invalid children specification in element declaration ?

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

Action: Check and correct the declaration.