Message in German (Deutsch)
Wenn 'ref' vorhanden ist, dürfen alle <complextype>, <simpletype>, <key>, <keyref>, <unique>, 'nillable', 'default', 'fixed', 'form', 'block' und 'type' nicht vorhanden sein.</unique></keyref></key></simpletype></complextype>
Unlocalized message
If ref is present, all of <complextype>, <simpletype>, <key>, <keyref>, <unique>, nillable, default, fixed, form, block, and type must be absent.</unique></keyref></key></simpletype></complextype>
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