How to spawn in an instance at a Position2D?

Question

I'm trying to make a script where once a button is pressed, it will spawn a prefab into the scene. However, I can't get it to work and get this message: Cannot convert argument 1 from Object to Vector2

Here is the code:

extends Button

# Items
onready var bathtub = load("res://Prefabs/Items/Bathtub.scn")

# Variables
onready var spawner = get_node("/root/Scene/Player/Spawner")

# Once pressed, the item will spawn on the Players Spawner node
func _on_Button_pressed():
    print("Spawned Item")
    var bathtubSpawn = bathtub.instance()
    bathtubSpawn.set_position(spawner)
    add_child(bathtub)

Here is my Player Node Tree: https://goo.gl/i4VvyQ
Here is the Spawn Menu Tree: https://goo.gl/Jwm82t

EDIT: I slightly fixed it, but instead of it spawning on the spawner, it spawns on the Scene Root Pos (0, 0). Here is the new code

extends Button

# Items
onready var bathtub = load("res://Instances/Items/Bathtub.scn")

# Variables
onready var spawner = get_node("/root/Scene/Player/Spawner")
onready var world = get_node("/root/Scene")

# Once pressed, the item will spawn on the Players Spawner node
func _on_Button_pressed():
    print("Spawned Item")
    var bathtubSpawn = bathtub.instance()
    bathtubSpawn.set_position(spawner.get_position())
    world.add_child(spawner)

Answer 1

You need to get the spawner position.

Godot 3
bathtubSpawn.set_position(spawner.get_position())

bathtubSpawn.position = spawner.position

Godot 2
bathtubSpawn.set_pos(spawner.get_pos())

Comments

Doesn't work, it doesn't spawn anything, but it does register the button press

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I'm sorry, I make a mistake.

You should use get_global_position().

bathtubSpawn.set_position(spawner.get_global_position())