Cause: The field element evaluated to a
node-set with a member that was not a simple type.
Action: Change the field element`s
type.

Relared Errors:
LSX-00300:
group must have name or ref but not both
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