Oracle Error ORA-19291: XPST0081 – specified QName cannot be expanded into a namespace URI

Oracle Error Message

ORA-19291: XPST0081 – specified QName cannot be expanded into a namespace URI

Reason for the Error

The namespace prefix of the QName could not be expanded into a namespace URI by using the statically known namespaces.

Solution

Use a namespace prefix that can be resolved into a namespace URI from the statically known namespaces.