具有 Plone 4.2.5 的站点已升级到 Plone 4.3.4。
签出对象时,显示以下错误:
2015-04-22T01:18:16 ERROR Zope.SiteErrorLog 1429676296.560.86437176197 http://localhost:8181/Plone/capa/@@content-checkout
Traceback (innermost last):
Module ZPublisher.Publish, line 146, in publish
Module Zope2.App.startup, line 301, in commit
Module transaction._manager, line 89, in commit
Module transaction._transaction, line 329, in commit
Module transaction._transaction, line 443, in _commitResources
Module ZODB.Connection, line 559, in commit
Module ZODB.Connection, line 1123, in savepoint
Module ZODB.Connection, line 623, in _commit
Module ZODB.Connection, line 658, in _store_objects
Module ZODB.serialize, line 422, in serialize
Module ZODB.serialize, line 431, in _dump
PicklingError: Can't pickle <class 'plone.app.kss.interfaces.IPortalObject'>: import of module plone.app.kss.interfaces failed
目录上没有对象提供plone.app.kss.interfaces.IPortalObject
.
任何想法?