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) [01:42:47.956] [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] [01:42:47.958] [main/INFO] [Launcher/MODLAUNCHER]: JVM identified as Eclipse Adoptium OpenJDK 64-Bit Server VM 21.0.12.1+1-LTS [01:42:47.986] [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 [01:42:48.117] [main/INFO] [loading.ImmediateWindowHandler/]: ImmediateWindowProvider not loading because launch target is forgeserver [01:42:48.185] [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 [01:42:48.745] [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] [01:42:48.764] [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] [01:42:48.770] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "cobbleworkers-neoforge-2.0.5+1.8.0.jar" [locator: {mods folder locator at /srv/pack/mods}, reader: mod manifest] [01:42:48.870] [main/INFO] [loading.moddiscovery.locators.JarInJarDependencyLocator/]: Found 2 dependencies adding them to mods collection [01:42:48.871] [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] [01:42:48.871] [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] [01:42:48.872] [main/INFO] [loading.moddiscovery.ModDiscoverer/]: Mod List: Name Version (Mod Id) Cobbleworkers 2.0.5+1.8.0 (cobbleworkers) Minecraft 1.21.1 (minecraft) NeoForge 21.1.251 (neoforge) [01:42:48.906] [main/ERROR] [loading.LanguageProviderLoader/LOADING]: Missing language kotlinforforge version [5.3,) wanted by cobbleworkers-neoforge-2.0.5+1.8.0.jar [01:42:49.497] [main/INFO] [LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [nogui] WARN StatusConsoleListener Advanced terminal features are not available in this environment [01:42:50] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.3). [01:42:57] [main/FATAL] [ne.ne.fm.ModLoader/CORE]: Error during pre-loading phase: Mod File /srv/pack/mods/cobbleworkers-neoforge-2.0.5+1.8.0.jar needs language provider kotlinforforge:5.3 or above to load We have found - [01:42:57] [main/ERROR] [minecraft/CrashReport]: Negative index in crash report handler (0/25) [01:42:57] [main/FATAL] [ne.ne.ne.se.lo.ServerModLoader/]: Crash report saved to ./crash-reports/crash-2026-09-27_01.42.57-fml.txt ---- Minecraft Crash Report ---- // I feel sad now :( Time: 2026-09-27 01:42:57 Description: Mod loading failures have occurred; consult the issue messages for more details net.neoforged.neoforge.logging.CrashReportExtender$ModLoadingCrashException: Mod loading has failed A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Mod loading issue -- Details: Mod file: Failure message: Mod File /srv/pack/mods/cobbleworkers-neoforge-2.0.5+1.8.0.jar needs language provider kotlinforforge:5.3 or above to load We have found - Mod version: Mod issues URL: Exception message: -- System Details -- Details: Minecraft Version: 1.21.1 Minecraft Version ID: 1.21.1 Operating System: Linux (amd64) version 5.15.0-1114-realtime Java Version: 21.0.12.1, Eclipse Adoptium Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Eclipse Adoptium Memory: 107582648 bytes (102 MiB) / 267386880 bytes (255 MiB) up to 805306368 bytes (768 MiB) CPUs: 2 Processor Vendor: GenuineIntel Processor Name: Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz Identifier: Intel64 Family 6 Model 158 Stepping 12 Microarchitecture: Coffee Lake Frequency (GHz): 3.60 Number of physical packages: 1 Number of physical CPUs: 8 Number of logical CPUs: 16 Graphics card #0 name: unknown Graphics card #0 vendor: unknown Graphics card #0 VRAM (MiB): 0.00 Graphics card #0 deviceId: unknown Graphics card #0 versionInfo: unknown Virtual memory max (MiB): 68454.64 Virtual memory used (MiB): 26182.26 Swap memory total (MiB): 4096.00 Swap memory used (MiB): 119.31 Space in storage for jna.tmpdir (MiB): Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): Space in storage for io.netty.native.workdir (MiB): Space in storage for java.io.tmpdir (MiB): available: 64358.52, total: 64358.65 Space in storage for workdir (MiB): available: 2539735.75, total: 7564391.00 JVM Flags: 0 total; ModLauncher: 11.0.5+main.901c6ea8 ModLauncher launch target: forgeserver ModLauncher services: sponge-mixin-0.15.2+mixin.0.8.7.jar mixin PLUGINSERVICE loader-4.0.44.jar slf4jfixer PLUGINSERVICE loader-4.0.44.jar runtime_enum_extender PLUGINSERVICE at-modlauncher-10.0.1.jar accesstransformer PLUGINSERVICE loader-4.0.44.jar runtimedistcleaner PLUGINSERVICE modlauncher-11.0.5.jar mixin TRANSFORMATIONSERVICE modlauncher-11.0.5.jar fml TRANSFORMATIONSERVICE FML Language Providers: javafml@4.0 lowcodefml@4.0 minecraft@4.0 Mod List: server-1.21.1-20240808.144430-srg.jar |Minecraft |minecraft |1.21.1 |Manifest: NOSIGNATURE neoforge-21.1.251-universal.jar |NeoForge |neoforge |21.1.251 |Manifest: NOSIGNATURE [01:42:57] [main/ERROR] [minecraft/Main]: Failed to start the minecraft server net.neoforged.fml.ModLoadingException: Loading errors encountered: - Mod File /srv/pack/mods/cobbleworkers-neoforge-2.0.5+1.8.0.jar needs language provider kotlinforforge:5.3 or above to load We have found - at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:110) ~[loader-4.0.44.jar%2359!/:4.0] {} at TRANSFORMER/neoforge@21.1.251/net.neoforged.neoforge.internal.CommonModLoader.begin(CommonModLoader.java:49) ~[neoforge-21.1.251-universal.jar%23119!/:?] {re:classloading} at TRANSFORMER/neoforge@21.1.251/net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:34) ~[neoforge-21.1.251-universal.jar%23119!/:?] {re:classloading} at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.Main.main(Main.java:124) ~[server-1.21.1-20240808.144430-srg.jar%23118!/:?] {re:classloading} at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] {} 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) ~[loader-4.0.44.jar%2359!/:4.0] {} at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) ~[loader-4.0.44.jar%2359!/:4.0] {} at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:32) ~[loader-4.0.44.jar%2359!/:4.0] {} at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.44.jar%2359!/:4.0] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%2364!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%2364!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%2364!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%2364!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%2364!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%2364!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%2364!/:?] {} at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] {} at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] {} 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) [server.jar:0.1.35] {} at net.neoforged.serverstarterjar.Main.main(Main.java:76) [server.jar:0.1.35] {} 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) [server.jar:0.1.35] {} Exiting...