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History for AttributeError_length
changed: - http://plone.org/documentation/error/zope-upgrade-attributeerror-length AttributeError: _length When you upgrade from Zope 2.7.x to 2.8.1 you get this error on most of the portal_catalog operations. Note from the editor: This fix is included in the migration mechanism in the Plone 2.1.1 release and newer. So this should only happen if you are upgrading to the exact 2.1.0 release while upgrading your Zope from 2.7 to 2.8 at the same time.
