I discovered this problems as well today. The first time I went (today) to the server settings to enable sharing, it worked fine. After that, I was unable to open it again, always seeing the reported error. Even after a reboot. Fortunately, the web interface was still working (open "http://localhost:631"; in the web browser).
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1349387 Title: server settings are inaccessible Status in “cups” package in Ubuntu: Confirmed Status in “system-config-printer” package in Ubuntu: Confirmed Bug description: When trying to access server settings via gnome gui in trusty I get a cups server error: "There was an HTTP error: Not found." Adding/removing printers with the gui works fine. The server settings are accessible via a web browser and the web interface. system-config-printer --debug (when calling the settings menu entry): Connected as user kiran Authentication pass: 1 Authentication: password callback set PolicyKit call to FileGet did not work: dbus.String(u'Not Found') Authentication pass: 2 Forbidden: False Authentication: Try as root Connected as user root Authentication pass: 3 Forbidden: False Authentication: giving up cups access.log: localhost - - [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 401 0 - - localhost - root [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 404 0 - - localhost - root [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 404 0 - - localhost - - [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 401 0 - - localhost - root [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 404 0 - - localhost - root [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 404 0 - - localhost - root [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 404 0 - - localhost - root [28/Jul/2014:13:40:42 +0200] "GET /admin/conf/cupsd.conf HTTP/1.1" 404 0 - - cups error.log: D [28/Jul/2014:13:41:22 +0200] [Client 15] Accepted from localhost (Domain) D [28/Jul/2014:13:41:22 +0200] [Client 15] Waiting for request. D [28/Jul/2014:13:41:22 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:22 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:22 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:22 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 16] No authentication data provided. D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="" D [28/Jul/2014:13:41:23 +0200] [Client 16] WWW-Authenticate: Basic realm="CUPS", trc="y" D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 16] Authorized as root using PeerCred D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="root" I [28/Jul/2014:13:41:23 +0200] [Client 16] Files/directories such as "/etc/cups/cupsd.conf" must be world-readable. D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing because Keep-Alive disabled D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 16] Authorized as root using PeerCred D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="root" I [28/Jul/2014:13:41:23 +0200] [Client 16] Files/directories such as "/etc/cups/cupsd.conf" must be world-readable. D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing because Keep-Alive disabled D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 15] No authentication data provided. D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="" D [28/Jul/2014:13:41:23 +0200] [Client 15] WWW-Authenticate: Basic realm="CUPS", trc="y" D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 15] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] [Client 15] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 15] Waiting for request. D [28/Jul/2014:13:41:23 +0200] [Client 16] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 15] Authorized as root using Local D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="root" I [28/Jul/2014:13:41:23 +0200] [Client 15] Files/directories such as "/etc/cups/cupsd.conf" must be world-readable. D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing because Keep-Alive disabled D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 15] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] [Client 15] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 16] Authorized as root using PeerCred D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="root" I [28/Jul/2014:13:41:23 +0200] [Client 16] Files/directories such as "/etc/cups/cupsd.conf" must be world-readable. D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing because Keep-Alive disabled D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 15] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] [Client 15] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 15] Waiting for request. D [28/Jul/2014:13:41:23 +0200] [Client 16] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 15] Authorized as root using PeerCred D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="root" I [28/Jul/2014:13:41:23 +0200] [Client 15] Files/directories such as "/etc/cups/cupsd.conf" must be world-readable. D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing because Keep-Alive disabled D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 15] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 15] Waiting for request. D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] Accepted from localhost (Domain) D [28/Jul/2014:13:41:23 +0200] [Client 16] Waiting for request. D [28/Jul/2014:13:41:23 +0200] [Client 15] HTTP_STATE_WAITING Closing on EOF D [28/Jul/2014:13:41:23 +0200] [Client 15] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:23 +0200] [Client 16] GET /admin/conf/cupsd.conf HTTP/1.1 D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Active clients", busy="Not busy" D [28/Jul/2014:13:41:23 +0200] [Client 16] Authorized as root using Local D [28/Jul/2014:13:41:23 +0200] cupsdIsAuthorized: username="root" I [28/Jul/2014:13:41:23 +0200] [Client 16] Files/directories such as "/etc/cups/cupsd.conf" must be world-readable. D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing because Keep-Alive disabled D [28/Jul/2014:13:41:23 +0200] [Client 16] Closing connection. D [28/Jul/2014:13:41:23 +0200] cupsdSetBusyState: newbusy="Not busy", busy="Active clients" D [28/Jul/2014:13:41:23 +0200] cupsd is not idle any more, canceling shutdown. D [28/Jul/2014:13:41:24 +0200] cupsd is not idle any more, canceling shutdown. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1349387/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
