Abstract parent classes need to be registered to godot.

Do not know if it is a feature or a bug.

I have this class:

import godot.annotation.RegisterClass
import godot.annotation.RegisterFunction
import godot.global.GD

@RegisterClass("Player")
class Player: BaseEntity() {
    @RegisterFunction
    override fun _ready(){
        GD.print("I am the player!")
    }
}

If BaseClass is not registered to godot (should not be, as it is an abstract class), then the generated code will reference the non-existant BaseEntityRegistrar. This is also bad, as because that parent is abstract, the generated code is now wrong, as it tries to get its constructor.

[chippmann]

I wouldn’t use _ready for the workaround. The engine will call this method if it’s registered. Use a method name of your own to minimize call overhead.

[Frontrider]

As a workaround you can just export an empty dummy funtion in the base class. I’ll fix this asap

Yap, adding a registered “_ready” method to the base class fixes it.