I see. Ok, the problem here is that there is a confusion between how scenes work and the file system. The
get_node function allows you to access nodes, but this nodes must be instanced in the
Scene Tree. This means you cannot access the node
Menu (which is also a scene) because it is not loaded yet. You must understand that using the
/root/ node path gives you access to the root node, and not to the root directory of your project in the filesystem. So the way you organice your directories and files has absolutely nothing to do with how you use the scenes in Godot engine.
To use your
Menu node in
Scene1 you have several approaches. You can create another scene, lets ctall it
GameScene (or whatever) and add the
Menu scenes as nodes. Then make this
GameScene your main scene.
Scene1 will be able to access
Menu by using
GameScene will function as a sort of Main game handler, and manage global stuff.
If you don't like that approach, then using the
Menu scene as a singleton and adding it to the autoload in your configuration might be what you are looking for. This adds the
Menu scene to the
Scene Tree when the game starts and makes it accesible to all scenes by using the method you already tried
The other way to go about this is probably instance the
Menu scene as a node inside the
Scene1 node. Then you could call the menu by using
I hope this helps you decide how to approach your node design.