Hello!
I have been trying to use machine learning library of SciSnap V2, but when I try to get prediction or teach the neural network it just comes up with an error: "TypeError layer.length is not a function".
Sounds like you are using a non-list in the LENGTH block, maybe indirectly by giving a SciSnap block a non-list value in a list input slot.
Ok, thank you! 
Please provide a screenshot.
Now it works, I just didn't know yet that I had to manually add the weights 
Thank you so much everyone for helping and quick answer!