Hi! After upgrading our Zope instances from Zope 2.7.2 to 2.8.4 we've noticed new kind of errors in event.log on one of our servers. Error is as follows: 2005-12-19T07:53:59 ERROR BeforeTraverse Error while invoking hook: "input" Traceback (most recent call last): File "/opt/Zope/2.8.4/lib/python/ZPublisher/BeforeTraverse.py", line 144, in __call__ meth(*(container, request, None)[:args]) AttributeError: __call__ I've looked into BeforeTraverse.py and I see this error is only logged to event.log and is not visible to the users, and it seems to me that it is something with acquisition(?) I need some hints how to find what causes this error - what has changed in 2.8.x and how to deal with this? Our application is written in ZODB not in products. There is a folder named 'input' in it, may it be the problem? -- Maciej Wisniowski