Cause: ref or name attributes are
either both missing or have both been specified.
Action: Specify either ref, name,
but not both.

Relared Errors:
LSX-00310:
local element or attribute should be namespace qualified
LSX-00311:
local element or attribute shouldn`t be namespace qualified
LSX-00320:
missing required elements in <all>
LSX-00330:
missing range start character
LSX-00331:
missing comma
LSX-00332: bad
decimal digits in a quantifier specification
LSX-00333:
literal ~S is not valid with respect to the pattern
LSX-00340:
improper namespace value for the imported element
LSX-00341:
ENTITY or ENTITIES type may only be used in attributes
LSX-00342:
value of attribute base must be a complex type definition