Surface frames _ Contour to Mesh tutorial

Grasshopper
, ,
1

Hi there,
I’m trying to make a mesh following this yt tutorial - however i keep coming up with this problem on the surface frames toggle, just wondering of anyone could help me out?

terrain mesh 01.gh (24.1 KB)

image
image2475×681 100 KB

image
image780×366 26.9 KB

Contour lines from Survey or GIS to surface mesh Full Tutorial Rhino and Grasshopper (youtube.com)

2

What is it about the error messages that you don’t understand?

The first problem with your GH file is that ‘SET CONTOURS’ is not internalized:

missing

Whatever curves are being projected to the ‘World XY’ plane are not surfaces and GH cannot automagically converts them to surfaces,