Kubuntu 17.10 will support KDE with Wayland and X. Creator will not start when running a Wayland desktop.
This application failed to start because it could not find or load the Qt platform plugin "wayland"
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.
Creator will start if xcb platform parameter is explicitly specified.
./qtcreator -platform xcb
To test it install Kubuntu 17.10 alpha, install package plasma-workspace-wayland. Kubuntu will boot into X desktop by default. Logout and select in the lower left corner plasma (Wayland).
Fix: Add a Wayland plugin to the Qt built bundled with Creator.