I have found a solution! I checked all the files inside the catalogue /usr/share/locale-langpack/csb/LC_MESSAGES and found that the most needed file is kcmlocale.mo. With this file I'm able to choose Kashubian in KDE Country and Language Settings.
Cheers, Michôł -- problems with choosing kashubian language in KDE kcontrol https://launchpad.net/bugs/74503 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
