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 1.20.4 - Java 17 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: 1.20.4 Modloader: NeoForge Modloader version: 20.4.251 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-17/bin/java Wait For User Input: false Run Command: /opt/java-17/bin/java -Dlog4j2.formatMsgNoLookups=true @user_jvm_args.txt -jar server.jar --installer-force --installer 20.4.251 nogui Java version: openjdk version "17.0.20.1" 2026-08-18 OpenJDK Runtime Environment Temurin-17.0.20.1+1 (build 17.0.20.1+1) OpenJDK 64-Bit Server VM Temurin-17.0.20.1+1 (build 17.0.20.1+1, mixed mode, sharing) [15:35:32.341] [main/INFO] [Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.neoForgeVersion, 20.4.251, --fml.fmlVersion, 2.0.17, --fml.mcVersion, 1.20.4, --fml.neoFormVersion, 20240627.114801, nogui] [15:35:32.345] [main/INFO] [Launcher/MODLAUNCHER]: ModLauncher 10.0.9+10.0.9+main.dcd20f30 starting: java version 17.0.20.1 by Eclipse Adoptium; OS Linux arch amd64 version 5.15.0-1114-realtime [15:35:32.493] [main/INFO] [loading.ImmediateWindowHandler/]: ImmediateWindowProvider not loading because launch target is forgeserver [15:35:32.533] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/srv/pack/libraries/net/fabricmc/sponge-mixin/0.13.4+mixin.0.8.5/sponge-mixin-0.13.4+mixin.0.8.5.jar%2379!/ Service=ModLauncher Env=SERVER [15:35:32.651] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "architectury-11.1.17-neoforge.jar" of type MOD with provider {mods folder locator at /srv/pack/mods} [15:35:32.651] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "cfm_wap-1.20.4-neoforge-1.2.0.jar" of type MOD with provider {mods folder locator at /srv/pack/mods} [15:35:32.651] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "framework-neoforge-1.20.4-0.7.15.jar" of type MOD with provider {mods folder locator at /srv/pack/mods} [15:35:32.651] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "refurbished_furniture-neoforge-1.20.4-1.0.12.jar" of type MOD with provider {mods folder locator at /srv/pack/mods} [15:35:32.753] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "server-1.20.4-20240627.114801-srg.jar" of type MOD with provider net.neoforged.fml.loading.moddiscovery.MinecraftLocator@754777cd [15:35:32.754] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "neoforge-20.4.251-universal.jar" of type MOD with provider net.neoforged.fml.loading.moddiscovery.MinecraftLocator@754777cd [15:35:32.856] [main/INFO] [loading.moddiscovery.JarInJarDependencyLocator/]: Found 1 dependencies adding them to mods collection [15:35:32.857] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "mixinextras-neoforge-0.4.1.jar" of type GAMELIBRARY with provider net.neoforged.fml.loading.moddiscovery.JarInJarDependencyLocator@4940809c [15:35:34.416] [main/INFO] [mixin/]: Compatibility level set to JAVA_17 [15:35:34.427] [main/INFO] [LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [nogui] [15:35:34.509] [main/WARN] [mixin/]: Reference map 'refurbished_furniture.refmap.json' for refurbished_furniture.common.mixins.json could not be read. If this is a development environment you can ignore this message 2026-09-27 15:35:35,693 main WARN Advanced terminal features are not available in this environment [15:35:36] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.4.1). Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:32) at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.Launcher.run(Launcher.java:108) at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.Launcher.main(Launcher.java:78) at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) at cpw.mods.bootstraplauncher@1.1.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:569) at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:306) at net.neoforged.serverstarterjar.Main.main(Main.java:76) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:569) at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:569) at MC-BOOTSTRAP/fml_loader@2.0.17/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) at MC-BOOTSTRAP/fml_loader@2.0.17/net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) at MC-BOOTSTRAP/fml_loader@2.0.17/net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:26) at MC-BOOTSTRAP/fml_loader@2.0.17/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.9/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ... 18 more Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/world/entity/LightningBolt has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:175) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.lambda$findClass$20(ModuleClassLoader.java:275) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:288) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:275) at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:191) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525) at TRANSFORMER/minecraft@1.20.4/net.minecraft.world.level.block.Blocks.(Blocks.java:7302) at TRANSFORMER/minecraft@1.20.4/net.minecraft.world.level.block.FireBlock.bootStrap(FireBlock.java:342) at TRANSFORMER/minecraft@1.20.4/net.minecraft.server.Bootstrap.bootStrap(Bootstrap.java:47) at TRANSFORMER/minecraft@1.20.4/net.minecraft.server.Main.main(Main.java:118) ... 27 more Exiting...