player.screen reporting Unknown position: screen

[Theanderblast]

Someone's reported a bug with my mod that I can't duplicate. It's happening when I try to access the screen property for the current player.

local player = game.players[event.player_index]
...
local function get_gui_root(player)
-- return player.gui.left
return player.gui.screen
end

I suppose they could be on an older version of Factorio. Any other reason that error would happen?

I can't duplicate the issue myself.

[Theanderblast]

I just realized they said they're running Factorio 0.17.43 - is that relevant?

[posila]

I just realized they said they're running Factorio 0.17.43 - is that relevant?

Yes, it is.

Version 0.17.59
...
Scripting

• Added LuaGui::screen.

Word of advice - tell people to update the game before starting investigating issues reported on ancient experimental releases.

[PyroFire]

Also set your compatability with base to >=0.17.59 in info.json, so the mod will be marked as incompatible if someone tries to load it on an older version.

[Theanderblast]

Excellent! Thanks much!