My modpack keeps crashing because of an "Unknown mod"

Posted August 31, 20223 yr

I was trying to play my modpack but it crashes with this error

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 2022-08-31 07:22:55 CEST
Description: Initializing game

java.lang.IllegalAccessError: tried to access class org.spongepowered.asm.mixin.transformer.MixinProcessor from class net.minecraftforge.fml.common.Loader
at net.minecraftforge.fml.common.Loader.handler$zza000$beforeConstructingMods(Loader.java:1141)
at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:594)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:467)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:3931)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Minecraft Version: 1.12.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 791364824 bytes (754 MB) / 1161822208 bytes (1108 MB) up to 3817865216 bytes (3641 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4096m -Xms256m
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.5.2860 Optifine OptiFine_1.12.2_HD_U_G5 66 mods loaded, 66 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

| State | ID | Version | Source | Signature |
|:----- |:------------------------ |:------------------------ |:------------------------------------------------------------ |:---------------------------------------- |
| L | minecraft | 1.12.2 | minecraft.jar | None |
| L | mcp | 9.42 | minecraft.jar | None |
| L | FML | 8.0.99.99 | forge-1.12.2-14.23.5.2860.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| L | forge | 14.23.5.2860 | forge-1.12.2-14.23.5.2860.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| L | creativecoredummy | 1.0.0 | minecraft.jar | None |
| L | openmodscore | 0.12.2 | minecraft.jar | None |
| L | skinlayers3d | 1.2.0 | 3dSkinLayers-forge-mc1.12.2-1.2.0.jar | None |
| L | magistuarmory | 1.0 | [1.12.2]-Epic-Knights-Armor-and-Weapons-6.2v(uncomplete).jar | None |
| L | aiimprovements | 0.0.1.3 | AIImprovements-1.12-0.0.1b3.jar | None |
| L | baubles | 1.5.2 | Baubles-1.12-1.5.2.jar | None |
| L | extrautils2 | 1.0 | extrautils2-1.12-1.9.9.jar | None |
| L | flyringbaublemod | 0.3.1_1.12-d4e654e | angelRingToBauble-1.12-0.3.1.50+d4e654e.jar | None |
| L | jei | 4.16.1.301 | jei_1.12.2-4.16.1.301.jar | None |
| L | appleskin | 1.0.14 | AppleSkin-mc1.12-1.0.14.jar | None |
| L | aquaculture | 1.6.8 | Aquaculture-1.12.2-1.6.8.jar | None |
| L | autoreglib | 1.3-32 | AutoRegLib-1.3-32.jar | None |
| L | codechickenlib | 3.2.3.358 | CodeChickenLib-1.12.2-3.2.3.358-universal.jar | None |
| L | avaritia | 3.3.0 | Avaritia-1.12.2-3.3.0.37-universal.jar | None |
| L | bettercaves | 1.12.2 | bettercaves-1.12.2-2.0.4.jar | None |
| L | bettermineshafts | 1.12.2-2.2.1 | BetterMineshaftsForge-1.12.2-2.2.1.jar | None |
| L | betterthirdperson | 1.8.1 | BetterThirdPerson-Forge-1.12.2-1.8.1.jar | None |
| L | blockarmor | 2.4.12 | BlockArmor-1.12.2-2.4.12.jar | None |
| L | blockdrops | 1.4.0 | blockdrops-1.12.2-1.4.0.jar | None |
| L | blocklings | 1.0 | Blocklings 6.0.1_b - 1.12.2.jar | None |
| L | bookshelf | 2.3.590 | Bookshelf-1.12.2-2.3.590.jar | None |
| L | chameleon | 1.12-4.1.3 | Chameleon-1.12-4.1.3.jar | None |
| L | champions | 1.12.2-1.0.11.10 | champions-1.12.2-1.0.11.10.jar | None |
| L | chancecubes | 1.12.2-5.0.2.385 | ChanceCubes-1.12.2-5.0.2.385.jar | None |
| L | clumps | 3.1.2 | Clumps-3.1.2.jar | None |
| L | collective | 3.0 | collective-1.12.2-3.0.jar | None |
| L | controlling | 3.0.10 | Controlling-3.0.10.jar | None |
| L | creativecore | 1.10.0 | CreativeCore_v1.10.70_mc1.12.2.jar | None |
| L | enhancedvisuals | 1.3.0 | EnhancedVisuals_v1.4.4_mc1.12.2.jar | None |
| L | motnt | 1.0.1 | EvenMoreTNT-1.0.1.jar | None |
| L | fastleafdecay | v14 | FastLeafDecay-v14.jar | None |
| L | forgivingvoid | 1.1.0 | ForgivingVoid_1.12.2-1.1.0.jar | None |
| L | waila | 1.8.26 | Hwyla-1.8.26-B41_1.12.2.jar | None |
| L | ichunutil | 7.2.2 | iChunUtil-1.12.2-7.2.2.jar | None |
| L | inventoryhud | 3.4.4 | InventoryHUD-1.12.2.forge-3.4.4.jar | None |
| L | inventorytweaks | 1.63+release.109.220f184 | InventoryTweaks-1.63.jar | None |
| L | journeymap | 1.12.2-5.7.1 | journeymap-1.12.2-5.7.1.jar | None |
| L | jeresources | 0.9.2.60 | JustEnoughResources-1.12.2-0.9.2.60.jar | None |
| L | mdxlib | 3.0.0.26 | mdxlib-3.0.0.26.jar | None |
| L | medieval_craft | 1.14.4 | MedievalCraft(weapons only)-1.12.2-1.1.1.jar | None |
| L | mobends | 1.2.1 | MoBends_1.12.2-1.2.1-19.12.21.jar | None |
| L | morph | 7.2.0 | Morph-1.12.2-7.2.1.jar | None |
| L | mousetweaks | 2.10 | MouseTweaks-2.10-mc1.12.2.jar | None |
| L | naturescompass | 1.8.5 | NaturesCompass-1.12.2-1.8.5.jar | None |
| L | openmods | 0.12.2 | OpenModsLib-1.12.2-0.12.2.jar | None |
| L | openblocks | 1.8.1 | OpenBlocks-1.12.2-1.8.1.jar | None |
| L | oreexcavation | 1.4.150 | OreExcavation-1.4.150.jar | None |
| L | supermartijn642configlib | 1.1.6 | supermartijn642configlib-1.1.6-forge-mc1.12.jar | None |
| L | supermartijn642corelib | 1.0.19 | supermartijn642corelib-1.0.19-forge-mc1.12.jar | None |
| L | packedup | 1.0.25 | packedup-1.0.26-forge-mc1.12.jar | None |
| L | potionfingers | r1.0-8 | PotionFingers-r1.0-8.jar | None |
| L | refinedstorage | 1.6.16 | refinedstorage-1.6.16.jar | None |
| L | refinedstorageaddons | 0.4.5 | refinedstorageaddons-0.4.5.jar | None |
| L | flammpfeil.slashblade | mc1.12-r33 | SlashBlade-mc1.12-r33.jar | None |
| L | storagedrawers | 5.2.2 | StorageDrawers-1.12.2-5.4.2.jar | None |
| L | tntbreaksbedrock | 1.5 | tntbreaksbedrock_1.12.2-1.5.jar | None |
| L | torohealthmod | 1.12.2-11 | torohealth-1.12.2-11.jar | None |
| L | torohud | 1.12.2-5 | torohud-1.12.2-5.jar | None |
| L | travelersbackpack | 1.0.35 | TravelersBackpack-1.12.2-1.0.35.jar | None |
| L | vanillafix | 1.0.10-150 | VanillaFix-1.0.10-150.jar | None |
| L | waystones | 4.1.0 | Waystones_1.12.2-4.1.0.jar | None |
| L | phosphor-lighting | 1.12.2-0.2.6 | phosphor-1.12.2-0.2.6+build50-universal.jar | None |
Loaded coremods (and transformers): Inventory Tweaks Coremod (InventoryTweaks-1.63.jar)
invtweaks.forge.asm.ContainerTransformer
SuperMartijn642's Core Lib Plugin (supermartijn642corelib-1.0.19-forge-mc1.12.jar)

VanillaFixLoadingPlugin (VanillaFix-1.0.10-150.jar)

PhosphorFMLLoadingPlugin (phosphor-1.12.2-0.2.6+build50-universal.jar)

CreativePatchingLoader (CreativeCore_v1.10.70_mc1.12.2.jar)

OpenModsCorePlugin (OpenModsLib-1.12.2-0.12.2.jar)
openmods.core.OpenModsClassTransformer
FMLModule (mdxlib-3.0.0.26.jar)
com.asx.mdx.AccessTransformer
GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.6.14800 Compatibility Profile Context 22.5.1 30.0.15021.11005' Renderer: 'AMD Radeon(TM) Vega 3 Graphics '
Suspected Mods: Unknown
Launched Version: forge-14.23.5.2860
LWJGL: 2.9.4
OpenGL: AMD Radeon(TM) Vega 3 Graphics GL version 4.6.14800 Compatibility Profile Context 22.5.1 30.0.15021.11005, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x AMD Ryzen 3 3250U with Radeon Graphics

August 31, 20223 yr

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My modpack keeps crashing because of an "Unknown mod"

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