Oracle Message ORA-19292 - XQST0057: It is a static error if a schema import binds a namespace prefix but does not specify a target namespace other than a zero-length string

ERROR	XQST0057: It is a static error if a schema import binds a namespace prefix but does not specify a target namespace other than a zero-length string
CAUSE	An error occurred during the processing of the XQuery expression.
ACTION	Check the detailed error message for the possible causes.