I am trying to sweep or loft a pipe profile, along a path between bodies in an assembly.

CM disabled sweep so the example shows loft.

I employed geometry to determine the path of the pipe which meets the constraints of true gradient and piercing.

The property manager accepts my first sketch profile selection (Profile Sketch1 on the right of the GA), but when I select the second sketch profile on the left of the GA, the message "Please select from the solid body of the component you are editing" appears.

I get the same message when I select the centerline parameters.

I have not finished creating a solid body so the message makes no sense to me.

What does it mean?