Hi, I'm having a strange problem with my Zope installation I need some help to solve. When I try to access the security (manage_access) page of my root Zope, I get the error listed below: <!-- Traceback (innermost last): File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/lib/zope/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/lib/zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_access) File /usr/lib/zope/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_access) File /usr/lib/zope/lib/python/AccessControl/Role.py, line 255, in manage_access (Object: ApplicationDefaultPermissions) File /usr/lib/zope/lib/python/App/special_dtml.py, line 120, in __call__ (Object: access) File /usr/lib/zope/lib/python/DocumentTemplate/DT_String.py, line 528, in __call__ (Object: access) File /usr/lib/zope/lib/python/DocumentTemplate/DT_With.py, line 146, in render (Object: _.namespace(valid_roles=valid_roles())) File /usr/lib/zope/lib/python/DocumentTemplate/DT_In.py, line 630, in renderwob (Object: permission_settings) File /usr/lib/zope/lib/python/AccessControl/Role.py, line 182, in permission_settings (Object: ApplicationDefaultPermissions) File /usr/lib/zope/lib/python/AccessControl/Role.py, line 177, in <lambda> TypeError: (see above) --> This only happen with root folder; in subfolders I can manage security without problem, that is, I can access the page and add/remove privileges, local roles, etc, even though I do not master it completely, but this is another story. Any help? My zope configuration is: Debian/GNU Linux 2.2 (potato) zope 2.2.1 zope-guf 1.1.0 zope-pygresqlda 0.3rjr2 zope-renderable 0.2 zope-tinytable 0b2 zope-worldpilot 1.0.4 []s, Mario O.de Menezes "Many are the plans in a man's heart, but IPEN-CNEN/SP is the Lord's purpose that prevails" http://curiango.ipen.br/~mario Prov. 19.21 http://www.revistalinux.com.br