https://forums.autodesk.com/t5/autocad-forum/sweep-error-message-unable-to-create-a-valid-body-because/m-p/6992359#M309364 <P>Disregard, was looking at wrong sweep.</P> <P>&nbsp;</P> <P>With the red polyline that you are trying to sweep along the magenta line, the axis cross over and AutoCAD has a hard time constructing this type of object where the sweep crosses over itself, because of the long ramp you have. May have to create the ramp another way.</P> Mon, 03 Apr 2017 18:10:38 GMT Anonymous 2017-04-03T18:10:38Z