Effectivly, my project is using the SDK 3.0.2.
However, I can't update to version 3.1.0 or later since those release do not support Single Pass with Light Renderer Pipeline.
I tried with my 3.0.2 project and with wvr_settings.apk and wvr_performance_hud_setting.apk from the 3.1.4, but that does'nt work.