Hi all, I'm trying to follow this driving animation from audio tutorial from a while back https://www.youtube.com/watch?v=xhLUdgAO7XA, [youtube.com] but I'm using Houdini V16 NC instead of who knows what he's using, I've been trying to solve this channel error for days now, “Error
Channel height0 not found.” in channel1 in the boxes sop, was hoping someone might be so good as to take a quick look and see if they could pinpoint the error? Here's the hip:

Cheers!

Here is a revised working version of your file. That Peter Quint tutorial is fairly old and some things have changed, such as the way attributes and global variables are now working. There was a field named wrong inswide the CHOP network as well.

The new method for copy stamping allows for direct forwarding of attributes to the stamp expression. This is why you don't need to construct temp variables inside the Copy sop anymore. Just list them in the attributes field.