No archiving/compressing tool in Dolphin context menu (Kubuntu 15.10)

I was missing 'extract' and 'compress' in Dolphin under Ubuntu 16.04 (not Kubuntu!) and fixed it by installing Ark:

sudo apt-get install ark

As I anticipated this is related to the "hybrid" state of the present Plasma 5.

Not only upgrade from a KDE4 system to Plasma 5 may disable some features, as presented in this question, but installing directly a Plasma 5 system like Kubuntu 15.04 or 15.10 may include similar problems

(as indicated here:

There are KDE4 applications and there are new KF5 applications.The KDE4 parts are looking the service menus from:

~/.kde/share/kde4/services/ServiceMenus/ and /usr/share/kde4/services/ServiceMenus/

The new KF5 service menus are at:

~/.local/share/kservices5/ServiceMenus/ and /usr/share/kservices5/ServiceMenus/*

)

But the solution for 15.10 (here and here) is different from the one for 15.04.

I used the second solution for 15.10, running this command:

sudo ln /usr/share/kde4/servicetypes/konqpopupmenuplugin.desktop /usr/share/kservicetypes5/konqpopupmenuplugin.desktop