[Zope] upgrade from zope-2.1.6 to zope-2.2.0b1

[Bak @ kedai]

hi all,
managed to install zope-2.2.0b1 ok.  default setting works fine, although i
only tested it minimally.  the quickstart barfs a traceback(reported
earlier).

upgraded from 2..1.6, here's what i did:
-tar everything under lib/python/Products; except for modules that comes with
zope 2.2
-untar in the new zope directory
-copied Data.fs to the newdir/var
-start Zope

Zope starts ok, but i can't get view or manage the site.  here's the traceback
---

Traceback (innermost last):
  File /home/kdie/Zope-2.2.0b1-src/lib/python/ZPublisher/Publish.py, line 222, in publish_module
  File /home/kdie/Zope-2.2.0b1-src/lib/python/ZPublisher/Publish.py, line 187, in publish
  File /home/kdie/Zope-2.2.0b1-src/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook
    (Object: ElementWithAttributes)
  File /home/kdie/Zope-2.2.0b1-src/lib/python/ZPublisher/Publish.py, line 162, in publish
  File /home/kdie/Zope-2.2.0b1-src/lib/python/ZPublisher/BaseRequest.py, line 425, in traverse
  File /home/kdie/Zope-2.2.0b1-src/lib/python/ZPublisher/BaseRequest.py, line 501, in old_validation
    (Object: broken)
AttributeError: (see above)

-----

i use UserDb for authentication, got a few ZClass of my own, SiteSummary, and a
few other zope products.

can anyone shed some light ?
thanks

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