Cannot Extrude

[Alarice]

When I try to extrude I am getting following error message:
"Segment chord not perpendicular to normal"
"Unable to extrude the selected object"
>Where am I doing wrong? what should be done? Can any one please explain.

 

[Agostino]

Hi Alarice,
Try using sweep and then choose to align the object with the path and if necessary align the UCS with the object to be extruded using the 3 point option and then try extruding.
Hope this is helpful.

 

[bfish]

What do you want to extrude? A CLOSED ployline (result is a solid) or just a line or polyline (result is a surface or mesh).
Do you want to extrude with a height value, or do you want to extrude by following a path. If you want to use a path, the path may not be in the same UCS as the object you want to extrude, i.e. the object is drawed in the XY-plane, than the path may not be drawed in the XY-plane; it should be drawed in i.e. the YZ-plane.