Vocabulary Directive now replaced by Utilities

Previously a named vocabulary would be registered in this manner:

Zope 2 style

<vocabulary
     name="collective.exampleapp.Subscribers"
     factory=".vocabularies.Subscribers" />

Zope 3 style

<utility
     name="collective.exampleapp.Subscribers"
     component=".vocabularies.Subscribers"
     provides="zope.app.schema.vocabulary.IVocabularyFactory"
      />

See another example of using a utility in the community documentation.

Or register your vocabularies using a grok utility

Read more about how vocabularies are handled the grok way in the dexterity developer manual

Code that attempts to use the Zope 2 style vocabulary directive will throw a configuration error

ConfigurationError: ('Unknown directive', u'http://namespaces.zope.org/zope', u'vocabulary')