Sun Sep 28, 2014 2:47 am
what to do?
Tue Sep 30, 2014 4:13 pm
You're on the wrong forum, this is a downstream (distro) issue.
Tell the package maintainer to install kwin (and plasma next) into some extra path (eg. "/opt/kde5") and twiddle environment variables for that session (so the proper exes, libs and plugins are resolved)
Notice that this is all "developers pre-release stuff" - if you even fail to install it, you're probably better off with trying a live image of plasma-next.
In case you're confused:
Arch provides releases of KF5 - that's the former kdelibs, but NOT the former kde-workspace stuff. "KDE 5", if you want, is not actually released to end-users.