I am trying to upgraded from Plone 3.04 to 3.1.2 on a MacBook Pro
under Leopard. Installation and transfer of data.fs went smooth.
However, when trying to do the upgrade I got an error with the
following traceback :
Traceback (innermost last):
Module ZPublisher.Publish, line 125, in publish
Module Zope2.App.startup, line 238, in commit
Module transaction._manager, line 96, in commit
Module transaction._transaction, line 395, in commit
Module transaction._transaction, line 495, in _commitResources
Module ZODB.Connection, line 510, in commit
Module ZODB.Connection, line 555, in _commit
Module ZODB.Connection, line 582, in _store_objects
Module ZODB.serialize, line 407, in serialize
Module ZODB.serialize, line 416, in _dump
PicklingError: Can't pickle <class
'p4a.video.interfaces.IVideoSupport'>: import of module
p4a.video.interfaces failed
Any advice on how to deal with this error?
Thank you.
Ahmed Hussein
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