Comment 13 for bug 715707

Ubuntu server 11.10 Oneiric Ocelot (amd64), confirmed dbus.proxies error:

sudo computer-janitor find
ERROR:dbus.proxies:Introspect error on :1.4:/: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: Rejected send message, 1 matched rules; type="method_call", sender=":1.19" (uid=0 pid=26961 comm="/usr/bin/python /usr/sbin/computer-janitor find ") interface="org.freedesktop.DBus.Introspectable" member="Introspect" error name="(unset)" requested_reply="0" destination=":1.4" (uid=0 pid=23712 comm="/usr/bin/python /usr/share/computerjanitor/janitor")
removable deb:linux-image-2.6.38-11-server

"find" actually still works in terms of finding the removable packages, but "clean" command failed without removing any package:

sudo computer-janitor clean --all
ERROR:dbus.proxies:Introspect error on :1.4:/: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: Rejected send message, 1 matched rules; type="method_call", sender=":1.20" (uid=0 pid=27075 comm="/usr/bin/python /usr/sbin/computer-janitor clean -") interface="org.freedesktop.DBus.Introspectable" member="Introspect" error name="(unset)" requested_reply="0" destination=":1.4" (uid=0 pid=23712 comm="/usr/bin/python /usr/share/computerjanitor/janitor")
processingdbus service error: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.PolicyKit1 was not provided by any .service files

Vote for raising the priority.