Our translator reports two issues plasma-mediacenter,

https://bugs.kde.org/show_bug.cgi?id=340884

This bug involves changing Messages.sh file so that strings are not extracted inplasma_shell_org.kde.plasma.desktop.pot and changing i18nd calls to read fromplasma_shell_org.kde.plasma.mediacenter.pot 

https://bugs.kde.org/show_bug.cgi?id=340888

This bug involves wrapping given strings in i18n calls

To compile and run plasma mediacenter you will need Plasma 5 environment