I tried code tableCloth.dyn and have this error message in the IsLine box: Error: Custom node definition is not loaded! Please need helpe!
I do not understand the process. Please help if you can make it in my file. Below is dropbox link. You would save my life
Here are instructions on how to install a package :
http://dynamoprimer.com/en/10_Packages/10-1_Introduction.html
John Pierson pointed out the one you need to install
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Here is a YouTube video that might help you. https://youtu.be/EgyYwLWryqo
Best of luck.
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