KAlarm fails to launch. So, I launched it from within Konsole as a regular user, with these results:
Code:
TuxBox@theo:~> kalarm
QCoreApplication::arguments: Please instantiate the QApplication object first
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
then it hangs forever.

My system:
Code:
openSUSE Leap 42.1 for x86_64

kalarm5 v15.12.3-40.6 from  from the KDE Applications repo at http://download.opensuse.org/repositories/KDE:/Applications/openSUSE_Leap_42.1/

libKF5AlarmCalendar5 v15.12.3-17.1 from the KDE Applications repo at http://download.opensuse.org/repositories/KDE:/Applications/openSUSE_Leap_42.1/

akonadi5 v15.12.3-37.8 from the from the KDE Applications repo at http://download.opensuse.org/repositories/KDE:/Applications/openSUSE_Leap_42.1/

akonadi_resources v15.12.3-40.6 from the KDE Applications repo at http://download.opensuse.org/repositories/KDE:/Applications/openSUSE_Leap_42.1/

Qt 5.5 from the repo at http://download.opensuse.org/repositories/KDE:/Qt55/openSUSE_Leap_42.1/
I know very little about the inner workings of the KDE PIM system, and the description of my system is my best guess at what may be involved; so, please expect I know nothing about how to fix this problem.

I do not have kalarm (KDE4) installed.
I use KAlarm quite frequently, so this is very frustrating. Please help.