How to fix the Oracle error LPX-00255: XML standalone declaration must be “yes” or “no”?

In this post, you’ll learn more about the Oracle ErrorLPX-00255: XML standalone declaration must be “yes” or “no” with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

LPX-00255: XML standalone declaration must be “yes” or “no”

Reason for the Error LPX-00255: XML standalone declaration must be “yes” or “no”

Cause: The “standalone” parameter in the XML declaration had an invalid value.

How to fix the Error LPX-00255: XML standalone declaration must be “yes” or “no” ?

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

Action: standalone must be set to either “yes” or “no”. Case is sensitive, so “Yes”, “YES”, and so on, are invalid.