Message in Spanish (Español)
OperationDescription '<var>X</var>' no es válido porque su propiedad Messages contiene un número no válido de instancias de MessageDescription. Cada OperationDescription debe tener uno o dos mensajes.
Unlocalized message
OperationDescription '<var>X</var>' is invalid because its Messages property contains an invalid number of MessageDescription instances. Each OperationDescription must have one or two messages.
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