Minecraft Forums

I'm testing some mods in an attempt to (eventually) create a modpack, unfortunately I keep getting a crash. This is what I got

The game crashed whilst initializing game
Error: java.lang.NoClassDefFoundError: arcaratus/bloodarsenal/item/sigil/ItemSigilSwimming

And:

---- Minecraft Crash Report ----

WARNING: coremods are present:
IELoadingPlugin (ImmersiveEngineering-0.12-74-core.jar)
IELoadingPlugin (ImmersiveEngineering-0.12-82-core.jar)
LesslagCorePlugin (Lesslag.jar)
llibrary (llibrary-core-1.0.6-1.12.2.jar)
IvToolkit (IvToolkit.jar)
CTMCorePlugin (CTM.jar)
Contact their authors BEFORE contacting forge

// This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]

Time: 8/28/18 8:43 PM
Description: Initializing game

java.lang.NoClassDefFoundError: arcaratus/bloodarsenal/item/sigil/ItemSigilSwimming
at arcaratus.bloodarsenal.core.RegistrarBloodArsenalItems.registerItems(RegistrarBloodArsenalItems.java:109)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_132_RegistrarBloodArsenalItems_registerItems_Register.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:144)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:755)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:628)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:246)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:466)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:377)
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)
Caused by: java.lang.ClassNotFoundException: arcaratus.bloodarsenal.item.sigil.ItemSigilSwimming
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 17 more
Caused by: java.lang.NoClassDefFoundError: arcaratus/bloodarsenal/item/sigil/ItemSigilBaseToggleable
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
... 19 more
Caused by: java.lang.ClassNotFoundException: arcaratus.bloodarsenal.item.sigil.ItemSigilBaseToggleable
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:101)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 23 more

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

-- Head --
Thread: Client thread
Stacktrace:
at arcaratus.bloodarsenal.core.RegistrarBloodArsenalItems.registerItems(RegistrarBloodArsenalItems.java:109)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_132_RegistrarBloodArsenalItems_registerItems_Register.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:144)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:755)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:628)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:246)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:466)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:377)
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)

-- System Details --
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: 151667416 bytes (144 MB) / 671088640 bytes (640 MB) up to 1073741824 bytes (1024 MB)
JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.4.2726 Optifine OptiFine_1.12.2_HD_U_E2 48 mods loaded, 48 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 |
|:----- |:-------------------- |:------------------------ |:--------------------------------------- |:---------------------------------------- |
| UCH | minecraft | 1.12.2 | minecraft.jar | None |
| UCH | mcp | 9.42 | minecraft.jar | None |
| UCH | FML | 8.0.99.99 | forge-1.12.2-14.23.4.2726.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| UCH | forge | 14.23.4.2726 | forge-1.12.2-14.23.4.2726.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| UCH | ivtoolkit | 1.3.3-1.12 | minecraft.jar | None |
| UCH | lesslag | 1.0 | minecraft.jar | None |
| UCH | jei | 4.11.0.212 | Just Enough Items.jar | None |
| UCH | abyssalcraft | 1.9.4.11 | AbyssalCraft.jar | 220f10d3a93b3ff5fbaa7434cc629d863d6751b9 |
| UCH | baublelicious | 1.4.0-4 | Baublelicious.jar | None |
| UCH | baubles | 1.5.2 | Baubles.jar | None |
| UCH | guideapi | 1.12-2.1.6-61 | Guide-API-1.12-2.1.6-61.jar | None |
| UCH | bloodmagic | 1.12.2-2.3.2-100 | BloodMagic-1.12.2-2.3.2-100.jar | None |
| UCH | ctm | MC1.12.2-0.3.2.18 | CTM.jar | None |
| UCH | chisel | MC1.12.2-0.2.0.31 | Chisel.jar | None |
| UCH | mantle | 1.12-1.3.2.24 | Mantle.jar | None |
| UCH | tconstruct | 1.12.2-2.10.1.87 | Tinkers' Construct.jar | None |
| UCH | bloodarsenal | 1.12.2-2.1.0-CUSTOM | BloodArsenal-1.12.2-2.1.0-23.jar | None |
| UCH | chesttransporter | 2.8.7 | Chest Transporter.jar | None |
| UCH | conarm | 1.0.2 | Construct's Armory.jar | 5d5b8aee896a4f5ea3f3114784742662a67ad32f |
| UCH | craftstudioapi | 1.0.0 | CraftStudio API.jar | None |
| UCH | gravestone | 1.10.1 | Gravestone Mod.jar | None |
| UCH | ichunutil | 7.1.4 | iChunUtil.jar | None |
| UCH | immersiveengineering | 0.12-82 | ImmersiveEngineering-0.12-82.jar | 4cb49fcde3b43048c9889e0a3d083225da926334 |
| UCH | immersivepetroleum | 1.1.9 | Immersive Petroleum.jar | None |
| UCH | immersivetech | 1.3.10 | Immersive Tech.jar | None |
| UCH | ironbackpacks | 1.12.2-3.0.8-12 | Iron Backpacks.jar | None |
| UCH | ironchest | 1.12.2-7.0.40.824 | Iron Chest.jar | None |
| UCH | ironfurnaces | 1.3 | Iron Furnaces.jar | None |
| UCH | journeymap | 1.12.2-5.5.1 | JourneyMap.jar | None |
| UCH | leafdecay | 1.0.0.2 | Leaf Decay Accelerator.jar | None |
| UCH | libvulpes | 0.2.8.-32 | libVulpes.jar | None |
| UCH | movillages | 1.5.4 | Mo' Villages.jar | None |
| UCH | morph | 7.1.2 | Morph-1.12.2-7.1.2.jar | None |
| UCH | naturescompass | 1.5.1 | Nature's Compass.jar | None |
| UCH | oreexcavation | 1.4.119 | OreExcavation.jar | None |
| UCH | clayspawn | 1.12a | Pam's Clay Spawn.jar | None |
| UCH | pamscookables | 1.1 | Pam's Cookables.jar | None |
| UCH | getalltheseeds | 1.12a | Pam's Get all the Seeds!.jar | None |
| UCH | harvestcraft | 1.12.2a | Pam's HarvestCraft.jar | None |
| UCH | reccomplex | 1.4.7 | Recurrent Complex.jar | None |
| UCH | roguelike | 1.8.0 | Roguelike Dungeons.jar | None |
| UCH | saltmod | 1.12_d | Salty Mod.jar | None |
| UCH | simpleoregen | 4.3.2 | SimpleOreGeneration-4.3.2+mc+1.12.2.jar | None |
| UCH | tinkersjei | 1.0 | Tinker's JEI.jar | None |
| UCH | tinkertoolleveling | 1.12.2-1.0.5.DEV.30c7957 | Tinkers Tool Leveling.jar | None |
| UCH | totemic | 1.12.2-0.11.3 | Totemic.jar | 21d11d7bf4d97b465382a1f95428029aac6daaea |
| UCH | waila | 1.8.22 | Waila.jar | None |
| UCH | llibrary | 1.7.14 | LLibrary.jar | b9f30a813bee3b9dd5652c460310cfcd54f6b7ec |

Loaded coremods (and transformers):
IELoadingPlugin (ImmersiveEngineering-0.12-74-core.jar)
blusunrize.immersiveengineering.common.asm.IEClassTransformer
IELoadingPlugin (ImmersiveEngineering-0.12-82-core.jar)
blusunrize.immersiveengineering.common.asm.IEClassTransformer
LesslagCorePlugin (Lesslag.jar)

llibrary (llibrary-core-1.0.6-1.12.2.jar)
net.ilexiconn.llibrary.server.core.plugin.LLibraryTransformer
net.ilexiconn.llibrary.server.core.patcher.LLibraryRuntimePatcher
IvToolkit (IvToolkit.jar)

CTMCorePlugin (CTM.jar)
team.chisel.ctm.client.asm.CTMTransformer
GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 388.13' Renderer: 'GeForce GTX 1050 Ti/PCIe/SSE2'
Pulsar/tconstruct loaded Pulses:
- TinkerCommons (Enabled/Forced)
- TinkerWorld (Enabled/Not Forced)
- TinkerTools (Enabled/Not Forced)
- TinkerHarvestTools (Enabled/Forced)
- TinkerMeleeWeapons (Enabled/Forced)
- TinkerRangedWeapons (Enabled/Forced)
- TinkerModifiers (Enabled/Forced)
- TinkerSmeltery (Enabled/Not Forced)
- TinkerGadgets (Enabled/Not Forced)
- TinkerOredict (Enabled/Forced)
- TinkerIntegration (Enabled/Forced)
- TinkerFluids (Enabled/Forced)
- TinkerMaterials (Enabled/Forced)
- TinkerModelRegister (Enabled/Forced)
- chiselIntegration (Enabled/Not Forced)
- wailaIntegration (Enabled/Not Forced)

Launched Version: 1.12.2-forge1.12.2-14.23.4.2726
LWJGL: 2.9.4
OpenGL: GeForce GTX 1050 Ti/PCIe/SSE2 GL version 4.6.0 NVIDIA 388.13, NVIDIA Corporation
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: CleanCraftMC_1.12_16.zip
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i3-6100 CPU @ 3.70GHz
OptiFine Version: OptiFine_1.12.2_HD_U_E2
OptiFine Build: 20180728-185429
Render Distance Chunks: 5
Mipmaps: 0
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: null
OpenGlVersion: 4.6.0 NVIDIA 388.13
OpenGlRenderer: GeForce GTX 1050 Ti/PCIe/SSE2
OpenGlVendor: NVIDIA Corporation
CpuCount: 4

Unfortunately I'm NOT tech savvy so I have no idea what to do.

Alas, I'm new to this site so if this is the wrong thread, please don't insult me, just direct me to the right place.

The latest Blood Magic update broke something in Blood Arsenal. Either downgrade Blood Magic until Blood Arsenal updates or remove Blood Arsenal.

Thanks.