How to integrate nvidia flex into unreal engine 4?

hi ,i want to use vxgi,i downloaded the zip file of https://github.com//UnrealEngine/tree/Merged and unzip(right-click the zip file and select ‘Properties…’ and ‘Unblock’ before decompressing it. Third-party zip utilities don’t normally do this.)i didnt find the unblock so i just unzip it with winrar.after that i run the setup.bat and wait for download to finish(about 3.5gig)then i did Run GenerateProjectFiles.bat and run the UE4.sln with visual studio and did the process of buil and when it finish i got 4 error like this (Error 6 error LNK2019: unresolved external symbol NvAPI_D3D11_CreateRasterizerState referenced in function “protected: struct nvgiutil::FVXGIRendererInterfaceD3D11::StateSet const & __cdecl nvgiutil::FVXGIRendererInterfaceD3D11::getStateSet(struct VXGI::RenderState const &)” (?getStateSet@FVXGIRendererInterfaceD3D11@nvgiutil@@IEAAAEBUStateSet@12@AEBURenderState@VXGI@@@Z) E:\UnrealEngine-Merged\Engine\Intermediate\ProjectFiles\Module.D3D11RHI.cpp.obj UE4) and this (Error 7 error LNK1120: 1 unresolved externals E:\UnrealEngine-Merged\Engine\Binaries\Win64\UE4Editor-D3D11RHI.dll 1 1 UE4
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