ORA-64437
Cannot evolve reference-based element or attribute 'name' into type 'type'.
- name: The name of the declared element or attribute.
- type: The name of the declared XSD type.
Cause
An attempt was made to make an XML schema change that was not permitted through in-place XML schema evolution.
Action
Ensure that the XML schema changes specified in the XMLDiff argument to DBMS_XMLSCHEMA.inPlaceEvolve are permitted.