Found this error with a lesson in the learn section

New to dynamo and have been following the learn section videos. got the parametric assmebly 2 video and uv quads on surface could not open in Dynamo 2.1. here is a pic of the error. can someone recommend a substitute?

Thank you,

You’re making a big jump between Dymano versions. A lot has changed between 0.7 and 2.1. Try installing the older version of Dynamo or recreate graph from scratch.

again beginner just following a lesson. I feel its prudent for the teacher of the lesson to update to current needs in current versions.

I agree - what link has the lesson? parametric assembly II