Sddm theme doesn't work on fedora

Hi, I wanted to install this sddm theme: when I boot up my sddm it doesn’t load a theme and says /usr/share/{and so on}/Main.qml:9 "org.kde.plasma.components" version 2.0 is not installed

what should I do to fix it? I suppose I’m missing some package but which one?

Looks like that theme isn’t compatible with Plasma 6.

sounds reasonable, thank you.