Can't join a revolved object and a solid

[genghis.tron]

I have a sketch that I revolved and a solid object that intersects with the revolved object, selecting the two and trying to combine doesn't work, I can't seem to select the revolved object. Am I missing something?

Above is the solid object.

Above is the revolve object.

Above shows the two selected. Nothing I've found allows me to hit "OK" on the join dialog box that appears once I hit "Combine."

[genghis.tron · Accepted solution]

I solved my own problem—with the revolve object selected, I did a Boundary Fill and that created a duplicate solid object of the revolve object.

[Anonymous]

The issue is that a revolved object is just a shell, not a solid, if the path is not closed. Therefore, you need to Solid >Create > Thicken the surface into a Solid. Only then can it be combined or joined with other solids.