[Plone-Users] ZMI invitation to reinstall products failed, TypeError: Can't pickle objects in acquisition wrappers

[Graham Perrin]

In ZMI, I followed an invitation to reinstall CacheSetup, collective.indexing
and collective.solr. The action failed,

Traceback (innermost last):
Module ZPublisher.Publish, line 125, in publish
Module Zope2.App.startup, line 238, in commit
Module transaction._manager, line 93, in commit
Module transaction._transaction, line 325, in commit
Module transaction._transaction, line 424, in _commitResources
Module ZODB.Connection, line 541, in commit
Module ZODB.Connection, line 586, in _commit
Module ZODB.Connection, line 620, in _store_objects
Module ZODB.serialize, line 407, in serialize
TypeError: Can't pickle objects in acquisition wrappers.

Since then I have uninstalled then reinstalled all three products, without
error.

Should we be concerned about the earlier TypeError?
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