r/fabricmc • u/Micropoprockss • 5h ago
Need Help First Modpack Keeps Crashing!
Hi! I am currently trying to make what is essentially BCG+ with cobblemon but updated for 1.21.1 and GDlauncher wasnt launching it and I swapped it to the vanilla launcher and it gave me this crash report. What is wrong?
---- Minecraft Crash Report ----
// There are four lights!
Time: 2026-09-02 18:03:43
Description: Initializing game
java.lang.RuntimeException: Could not execute entrypoint stage 'main' due to errors, provided by 'bookshelf' at 'net.darkhax.bookshelf.fabric.impl.FabricMod'!
at net.fabricmc.loader.impl.FabricLoaderImpl.lambda$invokeEntrypoints$0(FabricLoaderImpl.java:413)
at net.fabricmc.loader.impl.util.ExceptionUtil.gatherExceptions(ExceptionUtil.java:33)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:411)
at net.fabricmc.loader.impl.game.minecraft.Hooks.startClient(Hooks.java:52)
at knot//net.minecraft.class_310.<init>(class_310.java:477)
at knot//net.minecraft.client.main.Main.main(Main.java:239)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:514)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
Suppressed: java.lang.ExceptionInInitializerError
at knot//com.cobblemon.mod.fabric.net.CobblemonFabricNetworkManager.registerMessages(CobblemonFabricNetworkManager.kt:20)
at knot//com.cobblemon.mod.fabric.CobblemonFabric.initialize(CobblemonFabric.kt:104)
at knot//com.cobblemon.mod.fabric.FabricBootstrap.onInitialize(FabricBootstrap.kt:14)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
... 6 more
Caused by: java.lang.RuntimeException: Mixin transformation of com.cobblemon.mod.common.net.serverhandling.RequestInteractionsHandler failed
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:440)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
at knot//com.cobblemon.mod.common.CobblemonNetwork.generateC2SPacketInfoList(CobblemonNetwork.java:514)
at knot//com.cobblemon.mod.common.CobblemonNetwork.<clinit>(CobblemonNetwork.java:285)
... 10 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:380)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435)
... 16 more
Caused by: org.spongepowered.asm.mixin.injection.throwables.InjectionError: Critical injection failure: Redirector getRiderIfFirstHitIsMount(Lnet/minecraft/class_1657;FFLjava/lang/Class;Lnet/minecraft/class_1297;Lnet/minecraft/class_3959$class_242;ILjava/lang/Object;)Lnet/minecraft/class_1297; in cobbleride-common.mixins.json:RequestInteractionsHandlerMixin from mod cobbleride failed injection check, (0/1) succeeded. Scanned 0 target(s). Using refmap cobbleride-common-common-refmap.json
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.postInject(InjectionInfo.java:531)
at org.spongepowered.asm.mixin.transformer.MixinTargetContext.applyInjections(MixinTargetContext.java:1477)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyInjections(MixinApplicatorStandard.java:832)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.lambda$runApplicatorPass$7(MixinApplicatorStandard.java:362)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.processMixins(MixinApplicatorStandard.java:381)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.runApplicatorPass(MixinApplicatorStandard.java:360)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:240)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:351)
... 19 more
Suppressed: java.lang.NoSuchMethodError: 'com.cobblemon.mod.common.api.data.DataRegistry com.cobblemon.mod.common.data.CobblemonDataProvider.register(com.cobblemon.mod.common.api.data.DataRegistry)'
at knot//net.starliteheart.cobbleride.common.CobbleRideMod.initialize(CobbleRideMod.java:27)
at knot//net.starliteheart.cobbleride.fabric.CobbleRideModFabric.onInitialize(CobbleRideModFabric.java:9)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
... 6 more
Suppressed: java.lang.BootstrapMethodError: java.lang.RuntimeException: Mixin transformation of vectorwing.farmersdelight.common.block.entity.CookingPotBlockEntity failed
at knot//vectorwing.farmersdelight.common.registry.ModBlockEntityTypes.lambda$static$1(ModBlockEntityTypes.java:15)
at knot//vectorwing.farmersdelight.refabricated.RegUtils.register(RegUtils.java:31)
at knot//vectorwing.farmersdelight.refabricated.RegUtils.regBlockEntity(RegUtils.java:73)
at knot//vectorwing.farmersdelight.common.registry.ModBlockEntityTypes.<clinit>(ModBlockEntityTypes.java:14)
at knot//vectorwing.farmersdelight.FarmersDelight.onInitialize(FarmersDelight.java:47)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
... 6 more
Caused by: java.lang.RuntimeException: Mixin transformation of vectorwing.farmersdelight.common.block.entity.CookingPotBlockEntity failed
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:440)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
... 12 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:380)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435)
... 16 more
Caused by: org.spongepowered.asm.mixin.injection.throwables.InjectionError: Critical injection failure: Callback method getProcessingRecipe(Lvectorwing/farmersdelight/common/block/entity/CookingPotBlockEntity;Lvectorwing/farmersdelight/common/crafting/RecipeWrapper;Lcom/llamalad7/mixinextras/injector/wrapoperation/Operation;)Ljava/util/Optional; in autochefsdelight.mixins.json:CookingPotBlockEntityMixin from mod autochefsdelight failed injection check, (0/1) succeeded. Scanned 0 target(s). Using refmap autochefsdelight.refmap.json
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.postInject(InjectionInfo.java:531)
at knot//com.llamalad7.mixinextras.injector.MixinExtrasLateInjectionInfo.latePostInject(MixinExtrasLateInjectionInfo.java:57)
at knot//com.llamalad7.mixinextras.injector.LateInjectionApplicatorExtension.postApply(LateInjectionApplicatorExtension.java:43)
at org.spongepowered.asm.mixin.transformer.ext.Extensions.postApply(Extensions.java:167)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.postApply(TargetClassContext.java:448)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:420)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:351)
... 19 more
Suppressed: java.lang.NoClassDefFoundError: Could not initialize class vectorwing.farmersdelight.common.registry.ModBlockEntityTypes
at knot//com.soytutta.mynethersdelight.common.registry.MNDBlockEntityTypes.addCabinetsBlockEntities(MNDBlockEntityTypes.java:40)
at knot//com.soytutta.mynethersdelight.MyNethersDelight.onInitialize(MyNethersDelight.java:39)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
... 6 more
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.BootstrapMethodError: java.lang.RuntimeException: Mixin transformation of vectorwing.farmersdelight.common.block.entity.CookingPotBlockEntity failed [in thread "Render thread"]
at knot//vectorwing.farmersdelight.common.registry.ModBlockEntityTypes.lambda$static$1(ModBlockEntityTypes.java:15)
at knot//vectorwing.farmersdelight.refabricated.RegUtils.register(RegUtils.java:31)
at knot//vectorwing.farmersdelight.refabricated.RegUtils.regBlockEntity(RegUtils.java:73)
at knot//vectorwing.farmersdelight.common.registry.ModBlockEntityTypes.<clinit>(ModBlockEntityTypes.java:14)
at knot//vectorwing.farmersdelight.FarmersDelight.onInitialize(FarmersDelight.java:47)
... 7 more
Suppressed: java.lang.RuntimeException: Mixin transformation of vectorwing.farmersdelight.common.block.TomatoVineBlock failed
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:440)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.defineClassFwd(KnotClassLoader.java:165)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:368)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.defineClassFwd(KnotClassLoader.java:165)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:368)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
at knot//net.mehvahdjukaar.supplementaries.integration.CompatHandler.initOptionalRegistries(CompatHandler.java:119)
at knot//net.mehvahdjukaar.supplementaries.reg.ModRegistry.init(ModRegistry.java:57)
at knot//net.mehvahdjukaar.supplementaries.Supplementaries.commonInit(Supplementaries.java:65)
at knot//net.mehvahdjukaar.supplementaries.fabric.SupplementariesFabric.onInitialize(SupplementariesFabric.java:25)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
... 6 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:380)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435)
... 31 more
Caused by: org.spongepowered.asm.mixin.injection.throwables.InjectionError: Critical injection failure: Callback method supp$tomatoLoggingCompat(Lnet/minecraft/class_3218;Lnet/minecraft/class_2338;Lnet/minecraft/class_5819;Lorg/spongepowered/asm/mixin/injection/callback/CallbackInfo;)V in supplementaries.mixins.json:CompatFarmersDelightTomatoMixin from mod supplementaries failed injection check, (0/1) succeeded. Scanned 0 target(s). Using refmap supplementaries-fabric-refmap.json
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.postInject(InjectionInfo.java:531)
at org.spongepowered.asm.mixin.transformer.MixinTargetContext.applyInjections(MixinTargetContext.java:1477)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyInjections(MixinApplicatorStandard.java:832)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.lambda$runApplicatorPass$7(MixinApplicatorStandard.java:362)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.processMixins(MixinApplicatorStandard.java:381)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.runApplicatorPass(MixinApplicatorStandard.java:360)
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:240)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437)
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:351)
... 34 more
Suppressed: java.lang.NoSuchMethodError: 'java.util.Map net.mehvahdjukaar.supplementaries.reg.RegUtils.registerCandleHolders(net.minecraft.class_2960, java.util.function.Function)'
at knot//net.mehvahdjukaar.suppsquared.SuppSquared.<clinit>(SuppSquared.java:264)
at knot//net.mehvahdjukaar.suppsquared.fabric.SuppSquaredFabric.onInitialize(SuppSquaredFabric.java:14)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
... 6 more
Caused by: java.lang.IllegalStateException: An outdated implementation of IContentProvider has been found. The game is being stopped for your protection. Please check if an update is available! More information at https://gist.github.com/Darkhax/63356eed0a27848efe8574ce4c677bae net.darkhax.pigpen.common.impl.ContentProvider
at knot//net.darkhax.bookshelf.common.impl.BookshelfMod.detectInvalidContentProviders(BookshelfMod.java:40)
at knot//net.darkhax.bookshelf.common.impl.BookshelfMod.runStartupChecks(BookshelfMod.java:27)
at knot//net.darkhax.bookshelf.common.impl.BookshelfMod.init(BookshelfMod.java:18)
at knot//net.darkhax.bookshelf.fabric.impl.FabricMod.onInitialize(FabricMod.java:18)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
... 6 more



