---- Minecraft Crash Report ---- // Don't do that. Time: 28/01/22 16:44 Description: Rendering overlay java.lang.RuntimeException: null at net.minecraftforge.fml.ModList.completableFutureFromExceptionList(ModList.java:139) ~[?:?] {re:classloading} at net.minecraftforge.fml.ModLoadingStage$$Lambda$3141/1775383190.apply(Unknown Source) ~[?:?] {} at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:561) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:929) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:443) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) ~[?:1.8.0_51] {} Suppressed: java.lang.ArrayIndexOutOfBoundsException: 11 at net.minecraftforge.fml.ModLoadingStage.nextState(ModLoadingStage.java:130) ~[?:?] {re:classloading} at net.minecraftforge.fml.ModLoadingStage$$Lambda$3130/1964117592.apply(Unknown Source) ~[?:?] {} at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$5(ModContainer.java:124) ~[?:?] {re:classloading} at net.minecraftforge.fml.ModContainer$$Lambda$3134/443401609.accept(Unknown Source) ~[?:?] {} at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1624) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1610) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) ~[?:1.8.0_51] {} Suppressed: net.minecraftforge.fml.ModLoadingException: Forge (forge) encountered an error during the done event phase §7java.lang.IllegalArgumentException: Cannot register a capability implementation multiple times : net.minecraftforge.items.IItemHandler at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:124) ~[?:36.2] {re:classloading} at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:121) ~[?:?] {re:classloading} at net.minecraftforge.fml.ModContainer$$Lambda$3133/2137552114.run(Unknown Source) ~[?:?] {} at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1618) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1610) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) ~[?:1.8.0_51] {} Caused by: java.lang.IllegalArgumentException: Cannot register a capability implementation multiple times : net.minecraftforge.items.IItemHandler at net.minecraftforge.common.capabilities.CapabilityManager.register(CapabilityManager.java:72) ~[?:?] {re:classloading} at net.minecraftforge.items.CapabilityItemHandler.register(CapabilityItemHandler.java:40) ~[?:?] {re:classloading} at net.minecraftforge.common.ForgeMod.preInit(ForgeMod.java:167) ~[?:?] {re:classloading} at net.minecraftforge.common.ForgeMod$$Lambda$3152/1709272965.accept(Unknown Source) ~[?:?] {} at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus$$Lambda$2960/1827710791.invoke(Unknown Source) ~[?:?] {} at net.minecraftforge.eventbus.EventBus$$Lambda$3216/1173508232.invoke(Unknown Source) ~[?:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:120) ~[?:36.2] {re:classloading} ... 8 more Suppressed: net.minecraftforge.fml.ModLoadingException: Medieval MC (medieval_mc) encountered an error during the done event phase §7java.lang.IllegalStateException: Duplicate registration for type medieval_mc:tiger at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:124) ~[?:36.2] {re:classloading} at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:121) ~[?:?] {re:classloading} at net.minecraftforge.fml.ModContainer$$Lambda$3133/2137552114.run(Unknown Source) ~[?:?] {} at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1618) ~[?:1.8.0_51] {} at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1610) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) ~[?:1.8.0_51] {} at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) ~[?:1.8.0_51] {} Caused by: java.lang.IllegalStateException: Duplicate registration for type medieval_mc:tiger at net.minecraft.entity.EntitySpawnPlacementRegistry.func_209343_a(EntitySpawnPlacementRegistry.java:44) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.mcreator.medievalmc.entity.TigerEntity.init(TigerEntity.java:116) ~[?:?] {re:classloading} at net.mcreator.medievalmc.MedievalMcMod.lambda$init$1(MedievalMcMod.java:59) ~[?:?] {re:classloading} at net.mcreator.medievalmc.MedievalMcMod$$Lambda$3668/540295984.accept(Unknown Source) ~[?:?] {} at java.util.ArrayList.forEach(ArrayList.java:1249) ~[?:1.8.0_51] {} at net.mcreator.medievalmc.MedievalMcMod.init(MedievalMcMod.java:59) ~[?:?] {re:classloading} at net.mcreator.medievalmc.MedievalMcMod$$Lambda$3202/1829029829.accept(Unknown Source) ~[?:?] {} at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus$$Lambda$2960/1827710791.invoke(Unknown Source) ~[?:?] {} at net.minecraftforge.eventbus.EventBus$$Lambda$3216/1173508232.invoke(Unknown Source) ~[?:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:120) ~[?:36.2] {re:classloading} ... 8 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:484) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} -- Overlay render details -- Details: Overlay name: net.minecraft.client.gui.ResourceLoadProgressGui Stacktrace: at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:484) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:977) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A} at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {} at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {} at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {} at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {} at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.5-36.2.20.jar:36.2] {} at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$455/1432403167.call(Unknown Source) [forge-1.16.5-36.2.20.jar:36.2] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {} -- System Details -- Details: Minecraft Version: 1.16.5 Minecraft Version ID: 1.16.5 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: 1308647904 bytes (1248 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) CPUs: 12 JVM Flags: 10 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -XX:+IgnoreUnrecognizedVMOptions -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M ModLauncher: 8.0.9+86+master.3cf110c ModLauncher launch target: fmlclient ModLauncher naming: srg ModLauncher services: /mixin-0.8.4.jar mixin PLUGINSERVICE /eventbus-4.0.0.jar eventbus PLUGINSERVICE /forge-1.16.5-36.2.20.jar object_holder_definalize PLUGINSERVICE /forge-1.16.5-36.2.20.jar runtime_enum_extender PLUGINSERVICE /accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE /forge-1.16.5-36.2.20.jar capability_inject_definalize PLUGINSERVICE /forge-1.16.5-36.2.20.jar runtimedistcleaner PLUGINSERVICE /mixin-0.8.4.jar mixin TRANSFORMATIONSERVICE /forge-1.16.5-36.2.20.jar fml TRANSFORMATIONSERVICE FML: 36.2 Forge: net.minecraftforge:36.2.20 FML Language Providers: javafml@36.2 minecraft@1 Mod List: forge-1.16.5-36.2.20-client.jar |Minecraft |minecraft |1.16.5 |DONE |Manifest: NOSIGNATURE forge-1.16.5-36.2.20-universal.jar |Forge |forge |36.2.20 |ERROR |Manifest: 22:af:21:d8:19:82:7f:93:94:fe:2b:ac:b7:e4:41:57:68:39:87:b1:a7:5c:c6:44:f9:25:74:21:14:f5:0d:90 test 3.jar |Medieval MC |medieval_mc |1.0.0 |ERROR |Manifest: NOSIGNATURE Crash Report UUID: 4139db61-c4e8-4c50-8c1e-b6febcc18c9c Launched Version: 1.16.5-forge-36.2.20 Backend library: LWJGL version 3.2.2 build 10 Backend API: AMD Radeon RX 5700 XT GL version 4.6.14761 Compatibility Profile Context 21.30.23.01 30.0.13023.1012, ATI Technologies Inc. GL Caps: Using framebuffer using OpenGL 3.0 Using VBOs: Yes Is Modded: Definitely; Client brand changed to 'forge' Type: Client (map_client.txt) Graphics mode: fancy Resource Packs: Current Language: English (US) CPU: 12x AMD Ryzen 5 3600 6-Core Processor