$ sudo apt-get update
$ sudo apt-get install liboxideqt-qmlplugin 

liboxideqt-qmlplugin is installed in your system.

Make ensure the liboxideqt-qmlplugin package were installed using the commands given below,

$ sudo dpkg-query -l | grep liboxideqt-qmlplugin *

You will get with liboxideqt-qmlplugin package name, version, architecture and description in a table

liboxideqt-qmlplugin package basic information: