User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.0 (Beta/Release) Build ID: 20140621231050 Steps to reproduce: Installed Thunderbird 31 and then Lightning 3.3 Actual results: Two caldav calendars were reported as not working. After deactivating and reintegrating them shows the same error: [Exception... "Component returned failure code: 0x80570015 (NS_ERROR_XPC_CI_RETURNED_FAILURE) [nsIJSCID.createInstance]" nsresult: "0x80570015 (NS_ERROR_XPC_CI_RETURNED_FAILURE)" location: "JS frame :: resource://calendar/modules/calUtils.jsm -> file:///home/devil/.icedove/i7x5lz17.default/extensions/%7Be2fda1a4-762b-4020-b5ad-a41df1933103%7D/calendar-js/calCalendarManager.js :: cmgr_createCalendar :: line 441" data: no] Expected results: Caldav calendars should have been working after the upgrade
The message could indicate that your Lightning build is not binary compatible to your Thunderbird build. Do you use Thunderbird from mozilla.org? Or do you use Thunderbird from your OS repositories? Or do you use Icedove instead of Thunderbird? In the last release there was a known problem, see <https://blog.mozilla.org/calendar/2014/04/icedove-and-iceowl-extension-compatibility/>. Maybe try to use Iceowl-extension or Lightning from your OS repositories that match your Thunderbird/Icedove build.