Game controller doesnt work on Xbox One

I have my game mostly working on Xbox One, but I cannot get the controller working.

It throws an exception when trying to get the gamepad state saying that xinput_1.4.dll cannot be found.

So obviously sharp dx needs that dll on the system to work with controllers, so is there a work around? The sharp DX website is a joke these days with no forum or anything to ask this on as far as I am aware.