C# callable regression after #67987

[geowarin]

Godot version

v4.0.beta.mono.custom_build [256c007]

System information

Arch Linux

Issue description

Trying to attach a C# method to an event causes an exception.
I identified 256c007 to be the culprit.

E 0:00:00:0771   Godot.NativeInterop.godot_bool Godot.Bridge.CSharpInstanceBridge.Call(IntPtr , Godot.NativeInterop.godot_string_name* , Godot.NativeInterop.godot_variant** , Int32 , Godot.NativeInterop.godot_variant_call_error* , Godot.NativeInterop.godot_variant* ): System.TypeLoadException: Could not load type 'PressedEventHandler' from assembly 'GodotSharp, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null'.
  <C++ Error>    Exception
  <C++ Source>   :0 @ void control._Ready()()
  <Stack Trace>  :0 @ void control._Ready()()
                 Node.cs:1815 @ Boolean Godot.Node.InvokeGodotClassMethod(Godot.NativeInterop.godot_string_name& , Godot.NativeInterop.NativeVariantPtrArgs , Godot.NativeInterop.godot_variant& )()
                 CanvasItem.cs:1259 @ Boolean Godot.CanvasItem.InvokeGodotClassMethod(Godot.NativeInterop.godot_string_name& , Godot.NativeInterop.NativeVariantPtrArgs , Godot.NativeInterop.godot_variant& )()
                 Control.cs:3080 @ Boolean Godot.Control.InvokeGodotClassMethod(Godot.NativeInterop.godot_string_name& , Godot.NativeInterop.NativeVariantPtrArgs , Godot.NativeInterop.godot_variant& )()
                 CSharpInstanceBridge.cs:24 @ Godot.NativeInterop.godot_bool Godot.Bridge.CSharpInstanceBridge.Call(IntPtr , Godot.NativeInterop.godot_string_name* , Godot.NativeInterop.godot_variant** , Int32 , Godot.NativeInterop.godot_variant_call_error* , Godot.NativeInterop.godot_variant* )()

Steps to reproduce

public partial class control : Control
{
	// Called when the node enters the scene tree for the first time.
	public override void _Ready()
	{
		GetNode<Button>("Button").Pressed += () =>
		{
			GD.Print("Pressed");
		};
	}
}

Minimal reproduction project

Repro link: https://github.com/geowarin/CallableBug

CallableBug-main.zip

[raulsntos]

Since you are using a custom build, make sure to clean the GodotNuGetFallbackFolder directory to make sure the newly built packages are used.

[geowarin]

@raulsntos Yes that was it, thank you and sorry for the false positive!

Maybe this should be added to the C# readme?

[raulsntos]

We'll likely get rid of GodotNuGetFallbackFolder with the editor unification, but I guess adding a note in the meantime could be useful for users building from source.

Edit: We got rid of GodotNuGetFallbackFolder in 4.1 (see #73984).