It is worth, in this context, to comment on the relation between Kripke’s normativity constraint and the so called “problem of error”. As noted above, Kripke takes his normativity constraint to rule out dispositionalist accounts of meaning. Although he formulates his objection to dispositionalism in various ways (1982: 29–37), in the debate the main focus has been on the question whether the dispositionalist can account for the possibility of mistake or error. For an expression meaning green, fo