Kubuntu 24.04 to 24.10 Upgrade: module "org.kde.plasma.components" 2.0 not installed

[archibald-sassafrassalad]

Upon upgrading to 24.10 from 24.04.1, I receive the error

file:///home/archibald/.local/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:14:1: module "org.kde.plasma.components" version 2.0 is not installed

when signing in to my desktop. My desktop doesn't show anything apart from that error and many of the buttons on the dock are missing. I noticed this might be due to a theme issue, so I tried switching between Breeze and the default Kubuntu theme, but received the same error in both.