ORA-64438
Change to complex type 'complex_type_name' is unsupported or not permitted.
- complex_type_name: The name of the XML schema complex type.
Cause
An attempt was made to make XML schema changes that were 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.