Bet you can't import Wizard.zexp either and the traceback shows the identical pickled data. I'm battling a very similar problem and so far I think it's subtle corruption of the ZODB having to do with ZDiscussion. Note that the pickled data contains references to ZDiscussion. The pickled data in my traceback also contains references to ZDiscussion, although it's a different oid (\023w) and, therefore, record. There're no ZDiscussion records in DemoPortal.zexp or Wizard.zexp. At one point, after the nth time removing and reinstalling ZDBase, etal; DemoPortal and Wizard appeared *without me importing them*. I removed and reinstalled everything one more time (bad move!). DP and W disappeared and now import gives Duplicate Class Id. I think your import actually worked, but ran over somehow and crashed before the prodcuts could be registered. I'm in the midst of analyzing my Data.fs. Fsrecover doesn't find any problems. Tranalyzer has a couple of bugs with versions that I'm working through. I'll let you know. Bill. On Fri, 22 Sep 2000 [EMAIL PROTECTED] wrote to zope-PTK: > File /usr/local/zope/lib/python/ZODB/Connection.py, line 154, in __getitem__ > (Info: ('\000\000\000\000\000\000\034\315', > >'(cExtensionClass\012ExtensionClass\012q\001(U\006ZDItemq\002(cZClasses.ZClass\012PersistentClass\012q\003cProducts.ZDBase.ZDiscussions\012ZDItem\012q\004cOFS.SimpleItem\012SimpleItem\012q\005tq\006}q\007(U\004iconq\010UWControl_Panel/Products/ZDiscussion > >s/ZDTopic/propertysheets/methods/ZDItem%20/ziconImageq\011U\012_p_changedq\012K\001U\007__doc__q\013U\021ZDiscussions > >Itemq\014U\006_p_oidq\015U\010\000\000\000\000\000\000\002Lq\016U\011meta_typeq\017U\021ZDiscussions > >Itemq\020U\016propertysheetsq\021(U\010\000\000\000\000\000\000\034\320q\022(NU\010\000\000\000\000\000\000\034\314q\023Qtq\024tq\025QU\012index_htmlq\026cZClasses.Method\012MW\012q\027NRq\030}q\031U$_ZClassMethodPermissionMapperMethod_q\032(U\010\000\000 > >\000\000\000\000\034\321q\033(U\016OFS.DTMLMethodq\034cOFS.DTMLMethod\012DTMLMethod\012q\035tq\036tq\037QsbU\016manage_optionsq > >(}q!(U\005labelq"U\012Propertiesq#U\006actionq$U\025manage_propertiesFormq%u}q&am! > ! > >p;(U\005labelq\'U\010Securityq(U\006actionq)U\015manage_accessq*u}q+(h\'U\004Viewq,h)U\012index_htmlq-utq.U\012ziconImageq/(U\010\000\000\000\000\000\000\034\322q0(U\011OFS.Imageq1cOFS.Image\012Image\012q2tq3tq4QU\022__ac_permissions__q5)U\011_p_serialq6U > >\010\0030\226a\274;\204\314q7U\012__module__q8U\031*73biqpAI2QDa2iKPitv57g==q9utq:t.N.')) > Could not load oid Í, pickled data in traceback info may contain > clues: (see above) > > --> _______________________________________________ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )