Unable to see mesh as a solid object I have the following mesh in edit mode:

To which I have applied the solidify modfier. I want to see this object rendered, but when I switch to object mode and change to render mode using z 6, I see the following:

Whereas I expect to see a solid, rendered object. How to fix this?
Select 4 vertices and press F, to add a face between the selected vertices. You have to be in edit mode.