Lxdoom wont work with Heretic WAD

[barisurum]

Hi,

I use lxdoom to run doom, doom2, tnt etc. and it works perfectly but when I try to use it with heretic WAD it spits an error like:

LxDoom v1.4.4 (http://lxdoom.linuxgames.com/)
Z_Init : Allocated 6016Kb zone memory
found /usr/share/games/doom/heretic.wad
IWAD found: /usr/share/games/doom/heretic.wad
LxDoom (built Nov 9 2005), playing: DOOM Registered
LxDoom is released under the GNU General Public license v2.0.
You are welcome to redistribute it under certain conditions.
It comes with ABSOLUTELY NO WARRANTY. See the file COPYING for details.
M_LoadDefaults: Load system defaults.
I_SetRes: Using resolution 800x560
V_Init: allocate screens.
found /usr/share/games/doom/boomlump.wad
D_InitNetGame: Checking for network game.
W_Init: Init WADfiles.
adding /usr/share/games/doom/heretic.wad
adding /usr/share/games/doom/boomlump.wad

M_Init: Init miscellaneous info.
R_Init: Init DOOM refresh daemon -
R_LoadTrigTables: Endianness...ok.
R_InitData: Textures Flats Sprites Tranmap build [........]
R_Init: R_InitPlanes R_InitLightTables R_InitSkyMap R_InitTranslationsTables
P_Init: Init Playloop state.
R_TextureNumForName: SW1BRCOM not found