how to use oculus for android?

i have installed oculus for applying lipsync to my android game but after adding it to plugins directory i get just one plugin"OCULUS AUDIO" and i completely do not know what should i do.!

If u could provide full walkthrough it will be definitely very helpful.
Help is appreciated.

here is a step by step :
https://developer.oculus.com/documentation/unreal/audio-ovrlipsync-unreal/
be sure to install it in the engine and try to open the default project they provide to find out.
be sure to check both the installed and built in categories in the plugin panel :

it gives me an error when i open it even though i have all files and plugin in the directory.