Internal script error! Opcode: 0

[bindglam]

Godot version

4.0.1.stable

System information

Windows 11, GLES3, AMD Ryzen 5000 SERIES, AMD Radeon Graphics

Issue description

Creating and testing a Gui project with Godot Engine, suddenly 'Internal script error! Opcode: 0 (please report).' There was an error. I reported it, but I don't know why it happened.

Steps to reproduce

This code is applicable code.

class_name Game
extends Resource

enum GameType {
	RUNNABLE, GAMEBOY
}

@export var game_file: String
@export var game_type: GameType

Minimal reproduction project

N/A

[clemens-tolboom]

v4.0.3.stable.official [5222a99]

I get the error Internal script error! Opcode: 0 (please report). when running the game then edit the active scene file and save.

GDScript: Reloading all scripts
GDScript: Found: res://src/utils.gd
GDScript: Found: res://colored_cell.gd
GDScript: Found: res://grid.gd                       <== I changed this script and saved it
GDScript: Found: res://autoload/log4gd.gd
GDScript: Reloading: res://src/utils.gd
GDScript: Reloading: res://colored_cell.gd
GDScript: Reloading: res://grid.gd
GDScript: Reloading: res://autoload/log4gd.gd
  editor/debugger/debug_adapter/debug_adapter_types.h:70 - Condition "path.is_empty()" is true.
EditorSettings: Save OK!

My game has a Dictionary with Callables.

var actions:Dictionary  = {
	'reset': func(): reset_cells(),
	'select-player' : func(): select_player(), 
	'mark-player' : func(): mark_player(),
	'mark-targets' : func(): mark_targets(),
	'mark-target' : func(): select_target(),
	'throw-dice': func(): roll_dice()
}

and I changed the func select_player(): code saved it and then activate actions['select-player'].call()by pressing a button.

E 0:00:36:0622   grid.gd:179 @ (): Condition ' (ip + 5) > _code_size ' is true. Breaking..:
  <C++ Source>   modules/gdscript/gdscript_vm.cpp:697 @ call()
  <Stack Trace>  grid.gd:179 @ ()
                 grid.gd:188 @ do_action()
                 grid.gd:206 @ do_player()
                 grid.gd:221 @ _on_player_button_up()

@octglam what is your stack trace <C++ Source>?

[florton]

v4.0.3.stable.official [5222a99]

Internal script error! Opcode: 0 (please report)

Also happened when i saved a script, but the error occurred in a different script

E 0:01:36:0838   main.gd:21 @ _process(): Condition ' (ip + 5) > _code_size ' is true. Breaking..:
  <C++ Source>   modules/gdscript/gdscript_vm.cpp:697 @ call()
  <Stack Trace>  main.gd:21 @ _process()

Stack trace source:

godot/modules/gdscript/gdscript_vm.cpp

Line 697 in 5222a99

CHECK_SPACE(5);

[dalexeev]

and I changed the func select_player(): code saved it and then activate actions['select-player'].call()by pressing a button.

I understand correctly that you edited the script while the project was running? Or the error occurred without any actions with the code? Hot reload is buggy in 4.0, this is a known issue. See #72825.

[clemens-tolboom]

It was a hot reload/script edit while running ... I do that a lot but thought my anonymous functions caused it.

Issue #72825 is only mentioning external editor ... this issue seems all to have internal editor.

[dalexeev]

• See also Lambda references are corrupted when script is modified while debugging #62769.

Creating and testing a Gui project with Godot Engine, suddenly 'Internal script error! Opcode: 0 (please report).' There was an error. I reported it, but I don't know why it happened.

Since there is no detailed information, it is impossible to identify the source of the bug. So let's close this in favor of other issues. Please write here or open a new issue if you find additional information. Thanks for the contribution nonetheless!

It was a hot reload/script edit while running ... I do that a lot but thought my anonymous functions caused it.

I'm pretty sure this is a duplicate of the lambda hot reloading bug that has been reported several times. This can cause any effect depending on the offset. Also please check #81628, which should fix the bug.