As a beginner, I’m having trouble keeping sketches solid so that they can be grouped and have boolean transformations performed upon them.
Rather than try to explain it out, I took a screen recording of the issue. The shape I start with was traced over an in imported image of a technical drawing. It is a complete, closed loop as far as I can tell (it has faces, I thought that was a requirement of faces)
The actual boolean transformation I need to perform is not what is shown. But, in trying to figure out my problem I just wanted to get any shape to perform a boolean.