How to fix the Oracle error LPX-00284: namespace prefix to NULL URI is not allowed?

In this post, you’ll learn more about the Oracle ErrorLPX-00284: namespace prefix to NULL URI is not allowed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

LPX-00284: namespace prefix to NULL URI is not allowed

Reason for the Error LPX-00284: namespace prefix to NULL URI is not allowed

Cause: An element’s namespace prefix declarations was for a NULL URI, e.g. This is illegal presently in XML 1.0, but will be legal in XML 1.1

How to fix the Error LPX-00284: namespace prefix to NULL URI is not allowed ?

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

Action: Remove erroneous prefix definition.