I've got the same error, I was able to delete the cal by selecting it then discard the error message. To remove the calendar go on Edit menu then Delete Calendar.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to evolution in Ubuntu. https://bugs.launchpad.net/bugs/781254 Title: error message: "Error loading task list Cannot open calendar: Unexpected HTTP status code 4 returned"( CalDav ) Status in “evolution” package in Ubuntu: New Bug description: Binary package hint: evolution 1) Cannot remove mis-configured calendar (CalDav) 2) Evolution main menu becomes unaccessible (don't drop down) ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: evolution 2.32.2-0ubuntu7 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic x86_64 NonfreeKernelModules: wl nvidia Architecture: amd64 Date: Wed May 11 12:34:33 2011 EcryptfsInUse: Yes ExecutablePath: /usr/bin/evolution InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110407.1) ProcEnviron: SHELL=/bin/bash LANGUAGE=en_US:en LANG=en_US.UTF-8 SourcePackage: evolution UpgradeStatus: No upgrade log present (probably fresh install) XsessionErrors: (gnome-panel:6872): GConf-WARNING **: Directory `/apps/panel/toplevels/bottom_panel_screen1/screen' was not being monitored by GConfClient 0xa87700 (gnome-panel:6872): GConf-WARNING **: Directory `/apps/panel/toplevels/top_panel_screen1/screen' was not being monitored by GConfClient 0xa87700 (tracker-miner-fs:6880): Tracker-CRITICAL **: tracker_sparql_builder_object_string: assertion `literal != NULL' failed (tracker-miner-fs:6880): Tracker-CRITICAL **: tracker_sparql_builder_subject: assertion `((((tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_INSERT) || (tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_OBJECT)) || (tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_EMBEDDED_INSERT)) || (tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_DELETE)) || (tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_WHERE)' failed (tracker-miner-fs:6880): Tracker-CRITICAL **: tracker_sparql_builder_predicate: assertion `((tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_SUBJECT) || (tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_OBJECT)) || (tracker_sparql_builder_get_state (self) == TRACKER_SPARQL_BUILDER_STATE_BLANK)' failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/781254/+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
