Standard asset First Person Controller

I have tried 3 different times on 3 new projects and get this error every time I download the standard asset and add the first person character controller to my brand new project.
ArgumentException: Input Axis Mouse X is not setup.
To change the input settings use: Edit → Project Settings → Input

I dont know what is going on. Happens every single time.

Is there an issue with the asset pack?

Have you imported the cross platform input from standard assets as well?

I have never heard of that, and is it new? I have never needed that ever before.

I forgot to add, I am importing the entire standard assets folder, so everything should be imported includig this crossplatform asset