Attribute error :Nonetype object has no attribute for ‘PointAtParameter’

[panda888]

Hi all.
I’m new to the dynamo., don’t know how to solve this error

help please,

[jaisonpr777]

Hi @panda888 ,

I guess the issues is with the reverse().
Please refer the sample.
use wall = wall.Reverse()

this may helps you!

[panda888]

thx. Problem solved