Error: BL9 (class material_type) has two definitions from the same source (BL9_100monres)!

[greggbot]

Log below.

11:20:04.476 ERROR : (error message will follow backtrace)
  #0
    (dbghelp: debug_write_backtrace+0xb5@00007FF7E058EE95[cataclysm-tiles.exe+0x62ee95]), 
  #1
    (dbghelp: DebugLog+0x2b8@00007FF7E058DC48[cataclysm-tiles.exe+0x62dc48]), 
  #2
    (dbghelp: realDebugmsg+0x1fd@00007FF7E0590F8D[cataclysm-tiles.exe+0x630f8d]), 
  #3
    (dbghelp: `main_menu::new_character_tab'::`1'::catch$113+0x81@00007FF7E1B96CD1[cataclysm-tiles.exe+0x1c36cd1]), 
  #4
    (dbghelp: CallSettingFrame_LookupContinuationIndex+0x20@00007FF7E19CDF70[cataclysm-tiles.exe+0x1a6df70]), 
  #5
    (dbghelp: __FrameHandler4::CxxCallCatchBlock+0x115@00007FF7E19CCE79[cataclysm-tiles.exe+0x1a6ce79]), 
  #6
    (dbghelp: RtlCaptureContext2+0x4a6@00007FFAF5011766[ntdll.dll+0xa1766]), 
  #7
    (dbghelp: main_menu::new_character_tab+0x14b5@00007FF7E06BDD95[cataclysm-tiles.exe+0x75dd95]), 
  #8
    (dbghelp: main_menu::opening_screen+0x202c@00007FF7E06C04CC[cataclysm-tiles.exe+0x7604cc]), 
  #9
    (dbghelp: WinMain+0xade@00007FF7E042149E[cataclysm-tiles.exe+0x4c149e]), 
  #10
    (dbghelp: __scrt_common_main_seh+0x106@00007FF7E19BF6AA[cataclysm-tiles.exe+0x1a5f6aa]), 
  #11
    (dbghelp: BaseThreadInitThunk+0x14@00007FFAF3E87604[KERNEL32.DLL+0x17604]), 
  #12
    (dbghelp: RtlUserThreadStart+0x21@00007FFAF4FC26A1[ntdll.dll+0x526a1]), 
Backtrace emission took 0 seconds.
(continued from above) ERROR : D:\a\Cataclysm-DDA\Cataclysm-DDA\src\main_menu.cpp:983 [new_character_tab] Error: BL9 (class material_type) has two definitions from the same source (BL9_100monres)!
11:21:16.375 : Log shutdown.
-----------------------------------------

Recently decided to play CDDA again, interested in playing with this mod, but I seem to have a double definition issue? This happens on totally new worlds, I've tried making new ones several times. But honestly, I'm too rusty on CDDA troubleshooting to figure this out right now, so I'm just dropping it here.

[greggbot]

Yeah no nevermind I'm a dumbass and this is because I didn't properly reinstall. Closing.