Please read the rules and FAQ before starting a new topic

Currently supported: All versions

Support & Bug Reports

Help with Forge goes here. Refer to Modder Support for help with Forge modding. You MUST read the FAQ before posting.

Followers

FAQ

742390 visits to this link

Start new topic

Having big problem with forge after internet went out
Having big problem with forge after internet went out

Nuggie___, February 28, 20232 yr
- 9 replies
- 26.9k views
Paint_Ninja

March 10, 20232 yr
java.lang.IndexOutOfBoundsException
java.lang.IndexOutOfBoundsException

OwnAgePau, August 23, 201213 yr
- 7 replies
- 26.9k views
OwnAgePau

August 24, 201213 yr
Error before FML starts Pre-Init
Error before FML starts Pre-Init

UberPilot, January 7, 201510 yr
- 1 reply
- 26.9k views
luacs1998

January 7, 201510 yr
1.20.1 modded MC; Forge ver. 47.4.0; Seemingly corrupted chunk and/or mod conflict causing instant crash when near chunk
1.20.1 modded MC; Forge ver. 47.4.0; Seemingly corrupted chunk and/or mod conflict causing instant crash when near chunk

ofon, September 5, 2025Sep 5
- didn't read faq
- 2 replies
- 26.9k views
TileEntity

September 5, 2025Sep 5
Forge worked last night and now I'm getting "exit code 1"
Forge worked last night and now I'm getting "exit code 1"

AdAstra, December 14, 20223 yr
- 4 replies
- 26.8k views
widdlewade

July 10, 20241 yr
Entity is already tracked! [temporarly solved]
Entity is already tracked! [temporarly solved]

hubertnnn, December 1, 201213 yr
- 4 replies
- 26.8k views
cpw

December 6, 201213 yr
Can't download Forge.
Can't download Forge.

kacpi55501, December 29, 201213 yr
- 2 replies
- 26.8k views
Sebastian1314

December 29, 201213 yr
modpack crashing i have not idea what could be causing it
modpack crashing i have not idea what could be causing it

Zansy3, April 20, 2025Apr 20
- 1.20.1
- 1 reply
- 26.8k views
TileEntity

April 20, 2025Apr 20
Issues making a Modpack, help please
1.20.1
Issues making a Modpack, help please

AleeraMay1312, February 24, 20241 yr
- broken mod
- 12 replies
- 26.8k views
AleeraMay1312

February 29, 20241 yr
1.16.5 Mod loading error
1.16.5
1.16.5 Mod loading error

sachlich, June 9, 20232 yr
- client-only mods on server
- server advert
- 1 reply
- 26.8k views
Paint_Ninja

July 22, 20232 yr
Minecraft 1.7.10 cannot connect to the server
Minecraft 1.7.10 cannot connect to the server

chunkkit, July 7, 201411 yr
- 4 replies
- 26.8k views
LexManos

July 15, 201411 yr
Minecraft Forge 1.5.2-7.8.1.738 server issue
Minecraft Forge 1.5.2-7.8.1.738 server issue

FewerBeast5036, October 18, 201312 yr
- 13 replies
- 26.8k views
DaemonUmbra

January 15, 20205 yr
MASSIVE memory leak after installing Forge
MASSIVE memory leak after installing Forge

Fevix, December 28, 201213 yr
- 3 replies
- 26.8k views
Fevix

December 28, 201213 yr
Mods won't load - Invalid mod file - Forge 1.13.2
Mods won't load - Invalid mod file - Forge 1.13.2

TheDevKiller, March 23, 20196 yr
- 3 replies
- 26.8k views
DaemonUmbra

July 2, 20196 yr
please walk me through as soon as you can im having trouble with installing a mod on curseforge
please walk me through as soon as you can im having trouble with installing a mod on curseforge

hello343, September 7, 2025Sep 7
- didn't read faq
- 1 reply
- 26.8k views
Ugdhar

September 8, 2025Sep 8
Unable to find duplicate mods; Forge 1.19.2 custom modpack
1.19.2
Unable to find duplicate mods; Forge 1.19.2 custom modpack

zmqrcoo, October 24, 20232 yr
- wrong forge version
- 7 replies
- 26.8k views
zmqrcoo

October 25, 20232 yr
Minecraft Crashes While Loading into Game or World
Minecraft Crashes While Loading into Game or World

Max1musbuldozer, January 2, 2025Jan 2
- 4 replies
- 26.8k views
TileEntity

January 10, 2025Jan 10
Minecraft Forge For System Clay Soldier
Minecraft Forge For System Clay Soldier

Kuuki Sanaja, December 27, 201213 yr
- 2 replies
- 26.7k views
luacs1998

December 27, 201213 yr
org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError
1.16.5
org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError

Mr.Steve, April 8, 20241 yr
- didn't read faq
- 1 reply
- 26.7k views
Paint_Ninja

April 8, 20241 yr
Minecraft 1.3.2 Forge crashes (black screen)
Minecraft 1.3.2 Forge crashes (black screen)

RapperuOG, September 4, 201213 yr
- 6 replies
- 26.7k views
RapperuOG

September 5, 201213 yr
Forge Error: cannot connect (FMLIndexedMessageCodec exception)
Forge Error: cannot connect (FMLIndexedMessageCodec exception)

sequituri, March 15, 201411 yr
- 1 reply
- 26.7k views
sequituri

March 15, 201411 yr
Forge 1.19.2 Constant crashes caused by entities
1.19.2
Forge 1.19.2 Constant crashes caused by entities

Atlantir1, March 26, 2025Mar 26
- 1 reply
- 26.7k views
TileEntity

March 26, 2025Mar 26
world creation/loading crash
world creation/loading crash

fuddyduddyman, December 28, 201213 yr
- 2 replies
- 26.7k views
fuddyduddyman

December 31, 201213 yr
Missing BaseModMP
Missing BaseModMP

Hengar, April 27, 201213 yr
- 9 replies
- 26.7k views
LexManos

April 28, 201213 yr
I cant connect to my sister's modded lan world
I cant connect to my sister's modded lan world

Aster124, June 14, 20223 yr
- 4 replies
- 26.7k views
Bananarama

June 17, 20223 yr

Followers

IPS spam blocked by CleanTalk.

Announcements

(Forge 1.20.1)JEI Crash: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error

I found another pair of conflicting mods: Create: Connected and Create: Lazy Engines. So you should only use one of them in your modpack if you don't want a Mixin Transformer error.

By Maxdemyd0 · 17 hours ago17 hr
Which jar to use?

The .bat is a script to run the jar file Rename the file to .bat again, start the server and add the server log here with sites like
https://mclo.gs/

By TileEntity · 20 hours ago20 hr
Modpack crashing

It is an issue with dungeonsmod

Looks like it is conflicting with other mods/structures (structureessentials, betterjungletemples)

By TileEntity · 20 hours ago20 hr
Loading into certain worlds stuck on "Reading world data" then stops responding.(FIXED)

it worked thank you so much

By stell-alo · Yesterday at 01:16 AM1 day
forge 1.21.11 resource pack incompatible error

UPDATE**
Dug into the logs and found the following highlighted lines attached with the line previous to them

[19:34:20] [main/INFO]:Launching target 'forge_client' with arguments [--version, forge-61.0.3, --gameDir, C:\Users\elija\curseforge\minecraft\Instances\eli, --assetsDir, C:\Users\elija\curseforge\minecraft\Install\assets, --uuid, redacted, --username, ogspiff25, --assetIndex, 29, --accessToken, **********, --clientId, 75d6e0-b2d1da-c68cbc-4308e0-5ff233, --xuid, redacted, --versionType, release, --width, 1024, --height, 768, --quickPlayPath, C:\Users\elija\curseforge\minecraft\Quickplay\8b0c5374-30de-49e4-b03c-5db345efb58c.json, , , ]
[19:34:20] [main/WARN]:Reference map 'fusion.mixins.refmap.json' for fusion.mixins.json could not be read. If this is a development environment you can ignore this message

&

[19:34:26] [modloading-worker-0/INFO]:Opening jdk.naming.dns/com.sun.jndi.dns to java.naming
[19:34:26] [Render thread/ERROR]:Couldn't load mod:fusion pack metadata: Pack declares support for version newer than 64, but is missing mandatory fields min_format and max_format

How could I fix this? Or is this an issue with the mod/resource pack dev?

By GaltonWoggins · Yesterday at 01:08 AM1 day

artyl23

Sign In

Subforums

38514 topics in this forum

Important Information

Configure browser push notifications

Chrome (Android)

Chrome (Desktop)

Safari (iOS 16.4+)

Safari (macOS)

Edge (Android)

Edge (Desktop)

Firefox (Android)

Firefox (Desktop)