Start script generated by ServerPackCreator dev. To change the launch settings of this server, such as JVM args / flags, Minecraft version, modloader version etc., edit the variables.txt-file. Detected 1.21.1 - Java 21 Running NeoForge checks and setup... Generating user_jvm_args.txt from variables... Edit JAVA_ARGS in your variables.txt. Do not edit user_jvm_args.txt directly! Manually made changes to user_jvm_args.txt will be lost in the nether! server.jar present. Starting server... Minecraft version: 1.21.1 Modloader: NeoForge Modloader version: 21.1.251 LegacyFabric Installer Version: 1.1.1 Fabric Installer Version: 1.1.2 Quilt Installer Version: 0.15.1 Java Args: Additional Args: -Dlog4j2.formatMsgNoLookups=true SSJ Forge Args: -Djava.security.manager=allow Java Path: /opt/java-21/bin/java Wait For User Input: false Run Command: /opt/java-21/bin/java -Dlog4j2.formatMsgNoLookups=true @user_jvm_args.txt -jar server.jar --installer-force --installer 21.1.251 nogui Java version: openjdk version "21.0.12.1" 2026-08-18 LTS OpenJDK Runtime Environment Temurin-21.0.12.1+1 (build 21.0.12.1+1-LTS) OpenJDK 64-Bit Server VM Temurin-21.0.12.1+1 (build 21.0.12.1+1-LTS, mixed mode, sharing) [00:24:56.885] [main/INFO] [Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.neoForgeVersion, 21.1.251, --fml.fmlVersion, 4.0.44, --fml.mcVersion, 1.21.1, --fml.neoFormVersion, 20240808.144430, nogui] [00:24:56.889] [main/INFO] [Launcher/MODLAUNCHER]: JVM identified as Eclipse Adoptium OpenJDK 64-Bit Server VM 21.0.12.1+1-LTS [00:24:56.890] [main/INFO] [Launcher/MODLAUNCHER]: ModLauncher 11.0.5+main.901c6ea8 starting: java version 21.0.12.1 by Eclipse Adoptium; OS Linux arch amd64 version 5.15.0-1114-realtime [00:24:57.048] [main/INFO] [loading.ImmediateWindowHandler/]: ImmediateWindowProvider not loading because launch target is forgeserver [00:24:57.104] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=union:/srv/pack/libraries/net/fabricmc/sponge-mixin/0.15.2+mixin.0.8.7/sponge-mixin-0.15.2+mixin.0.8.7.jar%2373!/ Service=ModLauncher Env=SERVER [00:24:57.706] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "server-1.21.1-20240808.144430-srg.jar" [locator: production server provider +net.neoforged:neoforge:21.1.251:server] [00:24:57.730] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "neoforge-21.1.251-universal.jar" [locator: PathBasedLocator[name=neoforge, paths=[libraries/net/neoforged/neoforge/21.1.251/neoforge-21.1.251-universal.jar]], reader: mod manifest] [00:24:57.740] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "Data_Anchor-neoforge-1.21.5-3.0.0.5.jar" [locator: {mods folder locator at /srv/pack/mods}, reader: mod manifest] [00:24:57.881] [main/INFO] [loading.moddiscovery.locators.JarInJarDependencyLocator/]: Found 2 dependencies adding them to mods collection [00:24:57.881] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found gamelibrary file "mixinextras-neoforge-0.5.3.jar" [parent: neoforge-21.1.251-universal.jar, locator: jarinjar, reader: mod manifest] [00:24:57.881] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found library file "net.neoforged.neoforge-coremods-21.1.251.jar" [parent: neoforge-21.1.251-universal.jar, locator: jarinjar, reader: mod manifest] [00:24:57.883] [main/INFO] [loading.moddiscovery.ModDiscoverer/]: Mod List: Name Version (Mod Id) Data Anchor 3.0.0.5 (dataanchor) Minecraft 1.21.1 (minecraft) NeoForge 21.1.251 (neoforge) [00:24:58.509] [main/INFO] [mixin/]: Compatibility level set to JAVA_21 [00:24:58.523] [main/INFO] [LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [nogui] [00:24:58.835] [main/WARN] [mixin/]: Error loading class: net/minecraft/world/level/chunk/storage/SerializableChunkData (java.lang.ClassNotFoundException: net.minecraft.world.level.chunk.storage.SerializableChunkData) [00:24:58.836] [main/WARN] [mixin/]: @Mixin target net.minecraft.world.level.chunk.storage.SerializableChunkData was not found dataanchor-common.mixins.json:SerializableChunkDataMixin from mod dataanchor WARN StatusConsoleListener Advanced terminal features are not available in this environment [00:24:59] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.3). [00:25:00] [main/WARN] [mixin/]: Error loading class: net/minecraft/world/level/entity/UniquelyIdentifyable (java.lang.ClassNotFoundException: net.minecraft.world.level.entity.UniquelyIdentifyable) Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:32) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:306) at net.neoforged.serverstarterjar.Main.main(Main.java:76) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:118) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:32) at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ... 15 more Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:250) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.service.modlauncher.MixinTransformationHandler.processClass(MixinTransformationHandler.java:131) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.launch.MixinLaunchPluginLegacy.processClass(MixinLaunchPluginLegacy.java:131) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClassWithFlags(ILaunchPluginService.java:156) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:94) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:57) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:190) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.lambda$findClass$20(ModuleClassLoader.java:298) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:311) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:298) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:214) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.Bootstrap.bootStrap(Bootstrap.java:45) at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.Main.main(Main.java:120) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ... 21 more Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: net.minecraft.world.level.entity.UniquelyIdentifyable at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformSingleDescriptor(MixinTargetContext.java:1016) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformSingleDescriptor(MixinTargetContext.java:976) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformMethodDescriptor(MixinTargetContext.java:1033) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTargetContext.transformDescriptor(MixinTargetContext.java:932) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attachUniqueMethod(MixinPreProcessorStandard.java:518) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attachMethods(MixinPreProcessorStandard.java:351) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:299) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:277) 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:203) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418) at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363) ... 37 more Exiting...