Please make sure you have copied files to the correct location.
Copy and pasteWaveVRto<Your Project Folder>\Plugins\
Copy and pasteThirdPartyto<Whrere you install your UE4>\Epic Games\UE_4.20\Engine\Source\ThirdParty
But I think maybe you already done it before from your previous post.
In our experiences, sometimes there will be older files in the same directories so please delete all files above and then redo copy again (to make clean build) and basically the error will be disappered.