[blfs-support] kf5-5.49.0 + plasma

[spiky0011 via blfs-support]

Just finished kf5 on blfs dev and plasma wont launch,

I built kf5 and plasma in /opt as advised. Kf5 starts just the panel at
bottom which reports error

Error loading QML
file://opt/kf5-5.59.0/share/plasma/plasmoids/org.kde-panel/contents/ui/main.qml:28:1:script

import "LayoutManager.js" as LayoutManager  < this is from the main.qml

I have built kf5 ttwice and both times same error

Thank you