I was running a 1.18.2 server and I get this error all the time.
2023-02-22 17:41:33,071 main WARN Advanced terminal features are not available in this environment
[17:41:33] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.forgeVersion, 40.2.1, --fml.mcVersion, 1.18.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20220404.173914, nogui]
[17:41:33] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 9.1.3+9.1.3+main.9b69c82a starting: java version 19.0.2 by Oracle Corporation
[17:41:33] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/C:/Users/admin/OneDrive/Documents/Minecraft%20Servers/Modded%20Servers/server-1.2.2/libraries/org/spongepowered/mixin/0.8.5/mixin-0.8.5.jar%2314!/ Service=ModLauncher Env=SERVER
[17:41:34] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\admin\OneDrive\Documents\Minecraft Servers\Modded Servers\server-1.2.2\libraries\net\minecraftforge\fmlcore\1.18.2-40.2.1\fmlcore-1.18.2-40.2.1.jar is missing mods.toml file
[17:41:34] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\admin\OneDrive\Documents\Minecraft Servers\Modded Servers\server-1.2.2\libraries\net\minecraftforge\javafmllanguage\1.18.2-40.2.1\javafmllanguage-1.18.2-40.2.1.jar is missing mods.toml file
[17:41:34] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\admin\OneDrive\Documents\Minecraft Servers\Modded Servers\server-1.2.2\libraries\net\minecraftforge\lowcodelanguage\1.18.2-40.2.1\lowcodelanguage-1.18.2-40.2.1.jar is missing mods.toml file
[17:41:34] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\admin\OneDrive\Documents\Minecraft Servers\Modded Servers\server-1.2.2\libraries\net\minecraftforge\mclanguage\1.18.2-40.2.1\mclanguage-1.18.2-40.2.1.jar is missing mods.toml file
[17:41:34] [main/INFO] [ne.mi.fm.lo.mo.JarInJarDependencyLocator/]: Found 4 dependencies adding them to mods collection
[17:41:39] [main/INFO] [mixin/]: Compatibility level set to JAVA_17
[17:41:39] [main/ERROR] [mixin/]: Mixin config tklib.mixin.json does not specify "minVersion" property
[17:41:39] [main/ERROR] [mixin/]: Mixin config myrtrees-common.mixins.json does not specify "minVersion" property
[17:41:39] [main/ERROR] [mixin/]: Mixin config supercircuitmaker.mixin.json does not specify "minVersion" property
[17:41:39] [main/INFO] [mixin/]: Successfully loaded Mixin Connector [com.thevortex.allthetweaks.mixin.MixinConnector]
[17:41:39] [main/INFO] [mixin/]: Successfully loaded Mixin Connector [com.leobeliik.extremesoundmuffler.MixinConnector]
[17:41:39] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [nogui]
[17:41:39] [main/WARN] [mixin/]: Reference map 'createdeco.refmap.json' for createdeco.mixins.json could not be read. If this is a development environment you can ignore this message
[17:41:39] [main/WARN] [mixin/]: Reference map 'compactmachines.refmap.json' for compactmachines.mixin.json could not be read. If this is a development environment you can ignore this message
[17:41:39] [main/WARN] [mixin/]: Reference map 'myrtrees-common-refmap.json' for myrtrees-common.mixins.json could not be read. If this is a development environment you can ignore this message
[17:41:39] [main/WARN] [mixin/]: Reference map 'supercircuitmaker.refmap.json' for supercircuitmaker.mixin.json could not be read. If this is a development environment you can ignore this message
[17:41:39] [main/WARN] [mixin/]: Reference map 'insanelib.refmap.json' for insanelib.mixins.json could not be read. If this is a development environment you can ignore this message
[17:41:40] [main/WARN] [mixin/]: Reference map 'bloodmagic.refmap.json' for bloodmagic.mixins.json could not be read. If this is a development environment you can ignore this message
[17:41:40] [main/INFO] [ne.mi.co.Co.apotheosis/COREMODLOG]: Replaced 2 calls to Enchantment#getMaxLevel() in net/minecraft/world/inventory/AnvilMenu
[17:41:40] [main/WARN] [mixin/]: Error loading class: de/maxhenkel/gravestone/events/DeathEvents (java.lang.ClassNotFoundException: de.maxhenkel.gravestone.events.DeathEvents)
[17:41:40] [main/WARN] [mixin/]: Error loading class: de/maxhenkel/corpse/events/DeathEvents (java.lang.ClassNotFoundException: de.maxhenkel.corpse.events.DeathEvents)
[17:41:40] [main/INFO] [ne.mi.co.Co.apotheosis/COREMODLOG]: Patching FishingHook#catchingFish
[17:41:40] [main/WARN] [mixin/]: Error loading class: net/minecraft/world/level/levelgen/WorldGenSettings (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: @Mixin target net.minecraft.world.level.levelgen.WorldGenSettings was not found ae2.mixins.json:spatial.WorldGenSettingsMixin
[17:41:40] [main/WARN] [mixin/]: Error loading class: mezz/jei/transfer/RecipeTransferUtil (java.lang.ClassNotFoundException: mezz.jei.transfer.RecipeTransferUtil)
[17:41:40] [main/WARN] [mixin/]: @Mixin target mezz.jei.transfer.RecipeTransferUtil was not found polymorph_integrations.mixins.json:jei.MixinRecipeTransferUtil
[17:41:40] [main/WARN] [mixin/]: Error loading class: net/dries007/tfc/common/items/TorchItem (java.lang.ClassNotFoundException: net.dries007.tfc.common.items.TorchItem)
[17:41:40] [main/WARN] [mixin/]: @Mixin target net.dries007.tfc.common.items.TorchItem was not found allthetweaks.mixins.json:TFCTorch
[17:41:40] [main/WARN] [mixin/]: Error loading class: com/eerussianguy/firmalife/common/items/JarsBlockItem (java.lang.ClassNotFoundException: com.eerussianguy.firmalife.common.items.JarsBlockItem)
[17:41:40] [main/WARN] [mixin/]: @Mixin target com.eerussianguy.firmalife.common.items.JarsBlockItem was not found allthetweaks.mixins.json:BreathMint
[17:41:40] [main/FATAL] [ne.mi.fm.lo.RuntimeDistCleaner/DISTXFORM]: Attempted to load class net/minecraft/client/gui/screens/inventory/AbstractContainerScreen for invalid dist DEDICATED_SERVER
[17:41:40] [main/WARN] [mixin/]: Error loading class: net/minecraft/client/gui/screens/inventory/AbstractContainerScreen (java.lang.RuntimeException: Attempted to load class net/minecraft/client/gui/screens/inventory/AbstractContainerScreen for invalid dist DEDICATED_SERVER)
[17:41:40] [main/WARN] [mixin/]: @Mixin target net.minecraft.client.gui.screens.inventory.AbstractContainerScreen was not found findme-common.mixins.json:MixinSlotRenderer
[17:41:40] [main/FATAL] [ne.mi.fm.lo.RuntimeDistCleaner/DISTXFORM]: Attempted to load class net/minecraft/client/particle/ParticleEngine for invalid dist DEDICATED_SERVER
[17:41:40] [main/WARN] [mixin/]: Error loading class: net/minecraft/client/particle/ParticleEngine (java.lang.RuntimeException: Attempted to load class net/minecraft/client/particle/ParticleEngine for invalid dist DEDICATED_SERVER)
[17:41:40] [main/WARN] [mixin/]: @Mixin target net.minecraft.client.particle.ParticleEngine was not found findme-common.mixins.json:ParticleEngineAccessor
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/util/Map$Entry (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/util/Map$Entry (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[17:41:40] [main/WARN] [mixin/]: Error loading class: java/util/concurrent/CompletableFuture (java.lang.IllegalArgumentException: Unsupported class file major version 63)
Exception in thread "main" org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:250)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.service.modlauncher.MixinTransformationHandler.processClass(MixinTransformationHandler.java:131)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.launch.MixinLaunchPluginLegacy.processClass(MixinLaunchPluginLegacy.java:131)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClassWithFlags(ILaunchPluginService.java:156)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50)
at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:110)
at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.lambda$findClass$16(ModuleClassLoader.java:216)
at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:226)
at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:216)
at cpw.mods.securejarhandler@1.0.3/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:132)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.Class.getDeclaredMethods0(Native Method)
at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3458)
at java.base/java.lang.Class.getMethodsRecursive(Class.java:3599)
at java.base/java.lang.Class.getMethod0(Class.java:3585)
at java.base/java.lang.Class.getMethod(Class.java:2275)
at MC-BOOTSTRAP/fmlloader@1.18.2-40.2.1/net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:32)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.Launcher.run(Launcher.java:106)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.Launcher.main(Launcher.java:77)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26)
at MC-BOOTSTRAP/cpw.mods.modlauncher@9.1.3/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23)
at cpw.mods.bootstraplauncher@1.0.0/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149)
Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: java.util.concurrent.CompletableFuture
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMethod(MixinPreProcessorStandard.java:754)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transform(MixinPreProcessorStandard.java:739)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:310)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:280)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1288)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:292)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:383)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:365)
at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363)
... 27 more
Restarting automatically in 10 seconds (press Ctrl + C to cancel)
I tried fixing it but I couldn't find the issue with it. I can't start a server at all.
