What is the proper way to serialize Nodes?

[ruleBased848]

I am looking for the proper way to save my UIs as a RON file.
I followed this example, and it worked perfectly.
Then, I add a line:

...
let mut component_b = ComponentB::from_world(world);
component_b.value = "hello".to_string();
scene_world.spawn((
    component_b,
    ComponentA { x: 1.0, y: 2.0 },
    Transform::IDENTITY,
    Name::new("joe"),
));
scene_world.spawn(ComponentA { x: 3.0, y: 4.0 });
scene_world.insert_resource(ResourceA { score: 1 });
scene_world.spawn(NodeBundle::default()); // I added this.
...

It did compile, but when I ran it, it panicked with message "called Result::unwrap() on an Err value: Message("Type 'core::num::NonZeroU16' did not register ReflectSerialize")".
Does it mean that nodes are not able to be serialized into RON format? So I can't serialize my UIs?
I believe I am just missing something. Many thanks!

[MrGVSV]

Sounds like something in NodeBundle uses NonZeroU16, and it's saying that it's not currently registered. Try registering it like:

app.register_type::<NonZeroU16>();

Note that in 0.14 this won't need to be done manually anymore as we will have recursive registration (#5781).