"null instance" error

[Lily1]

Godot Version 4.4

I’m getting the following error:

" Invalid assignment of property or key ‘frame’ with value of type ‘int’ on a base object of type ‘null instance’. "

My code:

The animation changes CurrentBeat over time

The error occurs when I press space

If anyone can help that would be great

[soapspangledgames]

Build your CurrentNote array from within _ready(), as your scene elements are not valid until then.