Cycles Rendering Engine is only rendering a black screen

Question

I'm having an issue where the whole scene is set up, with maybe a few tweaks left. I have Cycles selected to render the scene. When the render is processing, instead of processing the image, it renders a black screen.

Here's the .blend file

Answer 1

Your ground object is set to be hidden for render.
To fix this, open an outliner window:

then click the greyed camera icon.