[standalone game] GZdoom dual loading game & not recognizing it

[parttimedork]

Hello! I am currently working on a standalone game using Nash's template, and am having issues loading it in gzdoom. When i drop the file onto GZDOOM or ZDL it either doesn't recognize it as it's own IPK3 or it lets me run it as a DOOM 2 mod, which gives it ugly textures & assets not included in my IPK3. When running it as it's own game, it returns these errors as though it's running it twice:

---

OS: Windows 10 (NT 10.0) Build 19045

GZDoom version g4.14.2
W_Init: Init WADfiles.
adding ./Undeath.ipk3, 384 lumps
GScript error, "Undeath.ipk3:defcvars.txt"G line 5:
GCannot set cvar default for blacklisted cvar 'adl_custom_bank'
GScript error, "Undeath.ipk3:defcvars.txt"G line 35:
GCannot set cvar default for blacklisted cvar 'disablecrashlog'
GScript error, "Undeath.ipk3:defcvars.txt"G line 45:
GCannot set cvar default for blacklisted cvar 'fluid_lib'
GScript error, "Undeath.ipk3:defcvars.txt"G line 46:
GCannot set cvar default for blacklisted cvar 'fluid_patchset'
GScript error, "Undeath.ipk3:defcvars.txt"G line 61:
GCannot set cvar default for blacklisted cvar 'gl_control_tear'
GScript error, "Undeath.ipk3:defcvars.txt"G line 62:
GCannot set cvar default for blacklisted cvar 'gl_debug'
GScript error, "Undeath.ipk3:defcvars.txt"G line 86:
GUnknown cvar 'gl_render_precise' in defcvars
GScript error, "Undeath.ipk3:defcvars.txt"G line 108:
GCannot set cvar default for blacklisted cvar 'gus_patchdir'
GScript error, "Undeath.ipk3:defcvars.txt"G line 110:
GCannot set cvar default for blacklisted cvar 'in_mouse'
GScript error, "Undeath.ipk3:defcvars.txt"G line 114:
GCannot set cvar default for blacklisted cvar 'joy_dinput'
GScript error, "Undeath.ipk3:defcvars.txt"G line 115:
GCannot set cvar default for blacklisted cvar 'joy_ps2raw'
GScript error, "Undeath.ipk3:defcvars.txt"G line 116:
GCannot set cvar default for blacklisted cvar 'joy_xinput'
GScript error, "Undeath.ipk3:defcvars.txt"G line 117:
GCannot set cvar default for blacklisted cvar 'k_allowfullscreentoggle'
GScript error, "Undeath.ipk3:defcvars.txt"G line 118:
GCannot set cvar default for blacklisted cvar 'k_mergekeys'
GScript error, "Undeath.ipk3:defcvars.txt"G line 124:
GCannot set cvar default for blacklisted cvar 'm_filter'
GScript error, "Undeath.ipk3:defcvars.txt"G line 136:
GCannot set cvar default for blacklisted cvar 'midi_config'
GScript error, "Undeath.ipk3:defcvars.txt"G line 164:
GCannot set cvar default for blacklisted cvar 'queryiwad_key'
GScript error, "Undeath.ipk3:defcvars.txt"G line 186:
GCannot set cvar default for blacklisted cvar 'save_dir'
GScript error, "Undeath.ipk3:defcvars.txt"G line 216:
GCannot set cvar default for blacklisted cvar 'timidity_config'
GScript error, "Undeath.ipk3:defcvars.txt"G line 239:
GCannot set cvar default for blacklisted cvar 'vid_adapter'
GScript error, "Undeath.ipk3:defcvars.txt"G line 248:
GCannot set cvar default for blacklisted cvar 'vid_gpuswitch'
GScript error, "Undeath.ipk3:defcvars.txt"G line 265:
GCannot set cvar default for blacklisted cvar 'vr_enable_quadbuffered'
GScript error, "Undeath.ipk3:defcvars.txt"G line 269:
GCannot set cvar default for blacklisted cvar 'wildmidi_config'
GCannot load DEFCVARS from a wadfile!
S_Init: Setting up sound.
I_InitSound: Initializing OpenAL
Opened device IOpenAL Soft on Speakers (Realtek High Definition Audio)
EFX enabled
No GENMIDI lump found. OPL playback not available.

Execution could not continue.
Script error, "Undeath.ipk3:cvarinfo.0weather" line 1:
cvar 'weather_amount' already exists

Anything I can do?

[drfrag]

You should not try to load the wad twice and there's a problem with DEFCVARS, you cannot include those cvars in the lump.

[Enjay]

To add to that, I don't think you can load an IWAD just by dropping it on to the exe/ZDL. That's why the game is trying to load it as a PWAD.

Options:
• Try loading your ipk3 explicitly from the command line gzdoom -iwad underneath.ipk3
• Try copying your project to a folder that has its own copy of G/UZdoom in it, or place your IPK3 wherever your other IWADs are. If you have set up your IPK3 properly, G/UZdoom should autodetect it in those locations.
• You say that you are using ZDL, so you could add your IPK3 to the IWAD list in ZDL (which effectively does the same as suggestion 1).