Hi, I had the same problem, and still had it with 24.1.0. Then I found this workaround which solves the problem. USE AT YOUR OWN RISK! a. mv ~/.thunderbird in ~/.thunderbird.old b. update thunderbird (I had to do it as root) c. run the new version of thunderbird (as user), skipping all the suggestions to create an email account d. install lightning (I also installed google calendar provider; you may need to reinstall more) e. restart thunderbird f. copied back everithing from ~/.thunderbird.old/<some random string> ~/.thunderbird to the new ~/.thunderbird/<some other random string> besides the following: _CACHE_CLEAN_ chrome extensions extensions.ini TestPilotExperimentFiles
Note that I COPIED and not MOVED them back, because in case of problems I wanted to be able to delete the new ~/.thunderbird directory without losing anything. Maybe I could have copied back some more file, but everything seems to work. So in my opinion, there is some file left from old installs in those directories, that disturbs the new version of Lightning. Anyway, now everything works fine for me -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1244619 Title: Thunderbird must be upgraded to Thunderbird 24.0.1 for lightning 2.6.1 Status in Lightning extension: Confirmed Status in Mozilla Thunderbird Mail and News: Confirmed Status in “thunderbird” package in Ubuntu: Confirmed Status in “thunderbird” package in Gentoo Linux: Fix Released Status in “thunderbird” package in openSUSE: Confirmed Bug description: Since the upgrade of Lightning 2.6.0 to Lightning 2.6.1, this extension need Thunderbird 24.0.1 but Ubuntu only give Thunderbird 24.0.0 https://blog.mozilla.org/calendar/2013/10/dont-upgrade-to-thunderbird-24-0-1-yet/ "Update 4: Lightning 2.6.1 is now public. On Linux, it is compatible ONLY with Thunderbird 24.0.1, so go ahead and upgrade now." A lot of people don't use the Ubuntu package for Lightning but those of Mozilla. Ubuntu should give an upgrade to Thunderbird 24.0.1 and Lightning 2.6.1 Step: 1) Silent update of Lightning 2.6.0 to Lightning 2.6.1 on Thunderbird 24.0.0 2) Open your calendar and see nothing (see screencast) A work form it's to downgrade to Lightning 2.6 until waiting Ubuntu upgrade to Thunderbird 24.0.1. You could find it here: https://addons.mozilla.org/fr/thunderbird/addon/lightning/versions/?page=1#version-2.6 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: thunderbird 1:24.0+build1-0ubuntu0.12.04.1 ProcVersionSignature: Ubuntu 3.8.0-32.47~precise1-generic 3.8.13.10 Uname: Linux 3.8.0-32-generic x86_64 ApportVersion: 2.0.1-0ubuntu17.6 Architecture: amd64 BuildID: 20130913160939 Date: Fri Oct 25 12:30:44 2013 InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120425-15:28 MarkForUpload: True SourcePackage: thunderbird UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/lightning-extension/+bug/1244619/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

