I had this issue, until I followed the instructions in comment 4 (https://bugs.launchpad.net/ubuntu/+source/akonadi/+bug/350890/comments/4) which seems to have fixed the issue.
-- akonadi-server not started ( not registered in D-Bus) https://bugs.launchpad.net/bugs/350890 You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to akonadi in ubuntu. -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs