The UltimateCataclysm has no 'unknown' tile defined

[hexagonrecursion]

I was told to report this in the tileset repo.

Describe the bug

I noticed the following message in my debug.log: "The tileset you're using has no 'unknown' tile defined!"

Attach save file

N/A

Steps to reproduce

1. Set tileset to UltiCa, use separate tileset for far: false, use tiles to display overmap: false
2. Select "play now (default scenario)"
3. Look in config/debug.log (the location of the config/ folder depends on your OS and settings)

options.json

Expected behavior

No error?

Screenshots

No response

Versions and configuration

• OS: Linux
  • OS Version: LSB Version: n/a; Distributor ID: Fedora; Description: Fedora Linux 38 (Container Image); Release: 38; Codename: n/a;
• Game Version: bef30a5 [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Portal Storms Ignore NPCs [personal_portal_storms],
  Slowdown Fungal Growth [no_fungal_growth],
  Translate Complex Dialogue [translate_dialogue]
  ]

Additional context

debug.log:

-----------------------------------------
11:25:37.634 : Starting log.
11:25:37.634 INFO : Cataclysm DDA version bef30a5
11:25:37.635 INFO : [main] C locale set to en_GB.UTF-8
11:25:37.635 INFO : [main] C++ locale set to en_GB.UTF-8
11:25:37.635 INFO : SDL version used during compile is 2.0.10
11:25:37.635 INFO : SDL version used during linking and in runtime is 2.28.5
11:25:37.791 INFO : SDL render devices: software, opengl, opengles2, opengles
11:25:37.793 INFO : [options] C locale set to en_GB.UTF-8
11:25:37.793 INFO : [options] C++ locale set to en_GB.UTF-8
11:25:37.793 INFO : Setting language to: 'en'
11:25:37.793 INFO : [i18n] Scanning core translations from lang/mo/
11:25:37.913 INFO : Active renderer: 3/software
11:25:37.968 INFO : USE_COLOR_MODULATED_TEXTURES is set to 0
11:25:37.998 INFO : Setting language to: 'en'
11:25:51.705 INFO : Loaded tileset: UltimateCataclysm
11:25:51.852 ERROR SDL : (error message will follow backtrace)
    ./cataclysm-tiles(debug_write_backtrace(std::ostream&)+0x40) [0x55fabcba2e33]
    ./cataclysm-tiles(DebugLog(DebugLevel, DebugClass)+0x1c8) [0x55fabcba3f18]
    ./cataclysm-tiles(tileset_cache::loader::load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool)+0x11e1) [0x55fabc9e63b3]
    ./cataclysm-tiles(tileset_cache::load_tileset(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<SDL_Renderer, SDL_Renderer_deleter> const&, bool, bool, bool)+0x209) [0x55fabc9e6a1f]
    ./cataclysm-tiles(cata_tiles::load_tileset(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool, bool)+0xb0) [0x55fabc9e6b4a]
    ./cataclysm-tiles(load_tileset()+0x136) [0x55fabd5316f7]
    ./cataclysm-tiles(DynamicDataLoader::finalize_loaded_data(loading_ui&)+0x2045) [0x55fabcdb76f7]
    ./cataclysm-tiles(game::load_world_modfiles(loading_ui&)+0x4c1) [0x55fabccdd195]
    ./cataclysm-tiles(game::setup()+0x104) [0x55fabcd0a454]
    ./cataclysm-tiles(main_menu::new_character_tab()+0xb1c) [0x55fabcfdefe4]
    ./cataclysm-tiles(main_menu::opening_screen()+0x10b6) [0x55fabcfe1636]
    ./cataclysm-tiles(main+0x1d09) [0x55fabc6f7f05]
    /lib64/libc.so.6(+0x27b4a) [0x7f1952cd7b4a]
    /lib64/libc.so.6(__libc_start_main+0x8b) [0x7f1952cd7c0b]
    ./cataclysm-tiles(_start+0x2e) [0x55fabc84db9e]

    Attempting to repeat stack trace using debug symbols…
    debug_write_backtrace(std::ostream&)
    …/src/debug.cpp:1227
    DebugLog(DebugLevel, DebugClass)
    …/src/debug.cpp:1453
    tileset_cache::loader::load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool)
    …/src/cata_tiles.cpp:758
    std::__shared_ptr<tileset const, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<tileset, void>(std::__shared_ptr<tileset, (__gnu_cxx::_Lock_policy)2>&&)
    /usr/include/c++/9/bits/shared_ptr_base.h:1185
    std::shared_ptr<tileset const>::shared_ptr<tileset, void>(std::shared_ptr<tileset>&&)
    /usr/include/c++/9/bits/shared_ptr.h:264
    tileset_cache::load_tileset(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<SDL_Renderer, SDL_Renderer_deleter> const&, bool, bool, bool)
    …/src/cata_tiles.cpp:4281
    std::__shared_ptr<tileset const, (__gnu_cxx::_Lock_policy)2>::__shared_ptr(std::__shared_ptr<tileset const, (__gnu_cxx::_Lock_policy)2>&&)
    /usr/include/c++/9/bits/shared_ptr_base.h:1177
    std::__shared_ptr<tileset const, (__gnu_cxx::_Lock_policy)2>::operator=(std::__shared_ptr<tileset const, (__gnu_cxx::_Lock_policy)2>&&)
    /usr/include/c++/9/bits/shared_ptr_base.h:1265
    std::shared_ptr<tileset const>::operator=(std::shared_ptr<tileset const>&&)
    /usr/include/c++/9/bits/shared_ptr.h:335
    cata_tiles::load_tileset(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool, bool)
    …/src/cata_tiles.cpp:333
    std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()
    /usr/include/c++/9/bits/basic_string.h:662
    load_tileset()
    …/src/sdltiles.cpp:3755
    DynamicDataLoader::finalize_loaded_data(loading_ui&)
    …/src/init.cpp:770
    std::set<string_id<MOD_INFORMATION>, std::less<string_id<MOD_INFORMATION> >, std::allocator<string_id<MOD_INFORMATION> > >::~set()
    /usr/include/c++/9/bits/stl_set.h:281
    game::load_world_modfiles(loading_ui&)
    …/src/game.cpp:3213
    game::setup()
    …/src/game.cpp:758
    main_menu::new_character_tab()
    …/src/main_menu.cpp:972
    main_menu::opening_screen()
    …/src/main_menu.cpp:863
    main
    …/src/main.cpp:792
    ??
    ??:0
    ??
    ??:0
    _start
    ??:?
Backtrace emission took 6 seconds.
(continued from above) ERROR : src/cata_tiles.cpp:758: The tileset you're using has no 'unknown' tile defined!