Last updated July 29, 2026
Written by YZ, June 2002
Applies to:
- AutoCAD 2000
Problem:
Sometimes when you offset a polyline AutoCAD crashes
Reason:
If you attempt to offset an old-style heavy polyline that contains arc segments and the plane of the polyline is not parallel to the current viewing plane, AutoCAD may crash with the message INTERNAL ERROR: !offset.cpp@312: eInvalidInput.
Workaround: Use lightweight polylines. Alternatively, make sure you view the drawing from a plan view with respect to the polyline before you offset it.