Posted June 19, 2025Jun 19 Hello, i've tried to make a minecraft server for my friends on old laptop. But im getting this error ---- Minecraft Crash Report ---- WARNING: coremods are present: DCLoadingPlugin (DummyCoreUnofficial-2.4.112.3.jar) HCASM (HammerLib-1.12.2-2.0.6.23.jar) Contact their authors BEFORE contacting forge // I feel sad now Time: 19.06.25 22:26 Description: Exception in server tick loop java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft at nukeduck.armorchroma.ArmorChroma.<clinit>(ArmorChroma.java:23) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:539) 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:498) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) at com.google.common.eventbus.EventBus.post(EventBus.java:217) at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219) at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) at com.google.common.eventbus.EventBus.post(EventBus.java:217) at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136) at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:595) at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:98) at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:333) at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:125) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) at java.lang.Thread.run(Thread.java:750) Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) at java.lang.ClassLoader.loadClass(ClassLoader.java:418) at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ... 35 more Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@57fae983 from coremod FMLCorePlugin at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:260) at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ... 37 more Caused by: java.lang.RuntimeException: Attempted to load class bib for invalid side SERVER at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:62) at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:256) ... 39 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.12.2 Operating System: Linux (amd64) version 6.8.0-51-generic Java Version: 1.8.0_452, Private Build Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Private Build Memory: 1088926088 bytes (1038 MB) / 1634205696 bytes (1558 MB) up to 4194304000 bytes (4000 MB) JVM Flags: 2 total; -Xms1024M -Xmx4500M IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP 9.42 Powered by Forge 14.23.5.2859 44 mods loaded, 44 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 | |:----- |:------------------------ |:------------------ |:--------------------------------------------- |:---------------------------------------- | | LC | minecraft | 1.12.2 | minecraft.jar | None | | LC | mcp | 9.42 | minecraft.jar | None | | LC | FML | 8.0.99.99 | forge-1.12.2-14.23.5.2859.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | LC | forge | 14.23.5.2859 | forge-1.12.2-14.23.5.2859.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | LC | codechickenlib | 3.2.3.358 | CodeChickenLib-1.12.2-3.2.3.358-universal.jar | f1850c39b2516232a2108a7bd84d1cb5df93b261 | | LC | ancientwarfare | 1.12.2-2.7.0.1032 | ancientwarfare-1.12.2-2.7.0.1032.jar | None | | LC | ancientwarfareautomation | 1.12.2-2.7.0.1032 | ancientwarfare-1.12.2-2.7.0.1032.jar | None | | LC | ancientwarfarenpc | 1.12.2-2.7.0.1032 | ancientwarfare-1.12.2-2.7.0.1032.jar | None | | LC | ancientwarfarestructure | 1.12.2-2.7.0.1032 | ancientwarfare-1.12.2-2.7.0.1032.jar | None | | LC | ancientwarfarevehicle | 1.12.2-2.7.0.1032 | ancientwarfare-1.12.2-2.7.0.1032.jar | None | | L | armorchroma | 1.4-beta | armorchroma-1.12.2-1.4.jar | None | | L | baubles | 1.5.2 | Baubles-1.12-1.5.2.jar | None | | L | betterburning | 0.9.2 | BetterBurning-1.12.2-0.9.2.jar | None | | L | bettercaves | 1.12.2 | bettercaves-1.12.2-2.0.4.jar | None | | L | betterinvisibility | 1.0.1 | betterinvisibility-1.0.1.jar | None | | L | bettermineshafts | 1.12.2-2.2 | BetterMineshaftsForge-1.12.2-2.2.jar | None | | L | bookshelf | 2.3.590 | Bookshelf-1.12.2-2.3.590.jar | None | | L | collective | 2.11 | collective-1.12.2-2.11.jar | None | | L | extendedrenderer | v1.0 | coroutil-1.12.1-1.2.37.jar | None | | L | coroutil | 1.12.1-1.2.37 | coroutil-1.12.1-1.2.37.jar | None | | L | configmod | v1.0 | coroutil-1.12.1-1.2.37.jar | None | | L | dummycore | 2.4.112.3. | DummyCoreUnofficial-2.4.112.3.jar | None | | L | dynamictrees | 1.12.2-0.9.22 | DynamicTrees-1.12.2-0.9.22.jar | None | | L | thaumcraft | 6.1.BETA26 | Thaumcraft_1.12.2_6.1.BETA26.jar | None | | L | dynamictreestc | 1.12.2-1.4.2 | DynamicTreesTC-1.12.2-1.4.2.jar | None | | L | hammercore | 2.0.6.23 | HammerLib-1.12.2-2.0.6.23.jar | None | | L | waila | 1.8.26 | Hwyla-1.8.26-B41_1.12.2.jar | None | | L | jei | 4.16.1.302 | jei_1.12.2-4.16.1.302.jar | None | | L | keepinginventory | 2.4 | KeepingInventory-1.12.2-2.4.jar | None | | L | libraryex | 1.2.1 | LibraryEx-1.12.2-1.2.1.jar | None | | L | netherex | 2.2.4 | NetherEx-1.12.2-2.2.4.jar | None | | L | recipehandler | 0.13 | NoMoreRecipeConflict-0.13(1.12.2).jar | None | | L | nei | 2.4.3 | NotEnoughItems-1.12.2-2.4.3.245-universal.jar | None | | L | thaumadditions | 12.6.6 | ThaumicAdditions-1.12.2-12.6.6.jar | None | | L | thaumicbases | 3.3.500.6r | thaumicbases-3.3.500.6r.jar | None | | L | thaumictinkerer | 1.12.2-5.0-620a0c5 | thaumictinkerer-1.12.2-5.0-620a0c5.jar | None | | L | thaumicwaila | 1.12.2-0.0.2 | ThaumicWaila-1.12.2-0.0.2.jar | None | | L | tumbleweed | 1.12-0.4.7 | tumbleweed-1.12-0.4.7.jar | None | | L | villagespawnpoint | 1.5 | villagespawnpoint_1.12.2-1.5.jar | None | | L | wawla | 2.6.275 | Wawla-1.12.2-2.6.275.jar | None | | L | wooltostring | 1.12.2 | WoolToString-1.12.2-1.0.0.jar | None | | L | zombieawareness | 1.12.1-1.11.16 | zombieawareness-1.12.1-1.11.16.jar | None | | L | betteranimalsplus | 9.0.1 | betteranimalsplus-1.12.2-9.0.1.jar | None | | L | orelib | 3.6.0.1 | OreLib-1.12.2-3.6.0.1.jar | None | Loaded coremods (and transformers): DCLoadingPlugin (DummyCoreUnofficial-2.4.112.3.jar) DummyCore.ASM.DCASMManager HCASM (HammerLib-1.12.2-2.0.6.23.jar) com.zeitheron.hammercore.asm.HammerCoreTransformer Profiler Position: N/A (disabled) Is Modded: Definitely; Server brand changed to 'fml,forge' Type: Dedicated Server (map_server.txt) Edited June 19, 2025Jun 19 by LinuxShetter
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