When trying to compile from github master branch (Main branch up to CL 2037954) I get a few did not override any base class methods like this:
UnrealEngine\Engine\Source\Runtime/Engine/Private/PhysicsEngine/PhysXSupport.h(516): error C3668: 'FApexNullRenderResourceManager::createSurfaceBuffer' : method with override specifier 'override' did not override any base class methods
and
unrealengine\engine\source\runtime\online\http\private\curl\CurlHttp.h(9): fatal error C1083: Cannot open include file: 'curl/curl.h': No such file or directory