How do I correctly initialize an exported custom typed array inside a and of a Resource type?

Question

My code in short is

extends Resource
class_name Blueprint

@export var recipe: Array[BlueprintRecipeItem] = []

func _init(p_recipe = []):
    recipe = p_recipe

but with this I get an error:

Trying to assign an array of type "Array" to a variable of type "Array[BlueprintRecipeItem]".

I also tried [null] instead of []

Answer 1

Hi there! Your post inspired me to write an article on the topic. Here is what I believe will solve your problem, please let me know if you have feedback for it or if this solves it! Good luck and I hope I’ve helped.

https://codabase.io/4480/resolving-array-type-mismatch-in-godot-4-0-1/

Comments

Did you actually try that out?
Because I specifically said I also tried [] and still got the error, actually it was the first thing I tried.

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