Variable from parent class is seen as null when trying to access it from child class instance

Help Programming
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1

Godot Version

v4.7.1.stable.steam [a13da4feb]

Question

I thought this might be useful for someone, as I lost some time looking for a solution. I haven’t seen another post about this, in the same context.

I have a parent class, which contained a variable.

extends CharacterBody2D
class_name Monkey

@export var Speed = 400

Then a child class, which inherited the parent class.

extends Monkey
class_name Player

Then, in another script, during physics_update, I tried accessing the said variable.

func Physics_Update(_delta: float):
	Player.velocity = movementDirection * Player.Speed

The game would throw an error, saying that the variable is NULL.

Invalid operands ‘Vector2’ and ‘Nil’ in operator ‘*’.

What fixed it for me was specifying the variable type on declaration.

extends CharacterBody2D
class_name Monkey

@export var Speed: float = 400

Have a good day!

2

This is solved, I just posted this in case anyone comes across this problem.