Hello, I create a ZClass which subclasses ZCatalog, in my 2.1.6 zope. Then I move the Data.fs to a 2.2 and all the instances of mt ZClass show up as broken This object is broken because the unknown product that created it is no longer installed or is installed incorrectly. (...) The ZClass itself is fine, and I have no problem creating new instances and managing them. I tried to export the instances from the 2.1.6, and importing them into 2.2 but alas: The object broken does not support this operation (traceback follows) Does anybody know why this happens? can anyone please help? Thanks, Noa Traceback (innermost last): File /hd1/zope/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /hd1/zope/lib/python/ZPublisher/Publish.py, line 187, in publish File /hd1/zope/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /hd1/zope/lib/python/ZPublisher/Publish.py, line 171, in publish File /hd1/zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_importObject) File /hd1/zope/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_importObject) File /hd1/zope/lib/python/OFS/ObjectManager.py, line 496, in manage_importObject (Object: ApplicationDefaultPermissions) File /hd1/zope/lib/python/OFS/CopySupport.py, line 402, in _verifyObjectPaste (Object: ApplicationDefaultPermissions) Copy Error: (see above) _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )