Output at object.geometry is showing as null

When I am using the nurbscurve by points to create a curve and trying to import it into civil3D model using Modelspace.bygeometry, the output is showing as null. It’s not reflecting in the C3D space For your reference I have attached screenshot of the dynamo space.

Hi @aravind.akhil007

Welcome on Forum!
Which object you’re trying to Create? 3D Polyline, Line or Polyline?

@mzjensen did a really good summary of Autocad objects that can be created from Dynamo geometry: Polyline3D to Surface

I am trying to create a 3D polyline

Nurbs curves are not covered