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 26.1.2 - Java 25 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: 26.1.2 Modloader: NeoForge Modloader version: 26.1.2.109 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-25/bin/java Wait For User Input: false Run Command: /opt/java-25/bin/java -Dlog4j2.formatMsgNoLookups=true @user_jvm_args.txt -jar server.jar --installer-force --installer 26.1.2.109 nogui Java version: openjdk version "25.0.4.1" 2026-08-18 LTS OpenJDK Runtime Environment Temurin-25.0.4.1+1 (build 25.0.4.1+1-LTS) OpenJDK 64-Bit Server VM Temurin-25.0.4.1+1 (build 25.0.4.1+1-LTS, mixed mode, sharing) Failed to compute version of installer: neoforge-26.1.2.109-installer.jar 2026-09-24T14:13:00.214950745Z main WARN Advanced terminal features are not available in this environment [14:13:00] [main/INFO] [ne.ne.fm.st.Entrypoint/]: JVM Uptime at startup: 163ms [14:13:00] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Starting FancyModLoader version 11.0.15 (DEDICATED_SERVER in PROD) [14:13:00] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Game directory: /srv/pack [14:13:00] [main/INFO] [ne.ne.fm.lo.EarlyServiceDiscovery/]: Found 2 early service jars (out of 69) in 18ms [14:13:00] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Loading FML Early Services: [14:13:00] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - libraries/net/neoforged/fancymodloader/earlydisplay/11.0.15/earlydisplay-11.0.15.jar [14:13:00] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - libraries/net/neoforged/fancymodloader/loader/11.0.15/loader-11.0.15.jar [14:13:00] [main/INFO] [ne.ne.fm.lo.ImmediateWindowHandler/]: Not loading early display in headless mode. [14:13:00] [main/INFO] [ne.ne.fm.lo.mo.lo.GameLocator/]: Failed to find common Minecraft classes and resources on the classpath. Assuming we're launching production. [14:13:00] [main/INFO] [ne.ne.fm.lo.mo.lo.JarInJarDependencyLocator/]: Found 5 dependencies adding them to mods collection [14:13:00] [main/INFO] [ne.ne.fm.lo.mo.ModDiscoverer/]: Mod List: Name Version (Mod Id) CodecUI 26.1.2-1.4.5 (codecui) Minecraft 26.1.2 (minecraft) NeoForge 26.1.2.109 (neoforge) Polytone 26.1.2-6.7.2 (polytone) [14:13:00] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=file:/srv/pack/libraries/net/fabricmc/sponge-mixin/0.17.3+mixin.0.8.7/sponge-mixin-0.17.3+mixin.0.8.7.jar Service=FML Env=SERVER [14:13:01] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Loading FML Plugins: [14:13:01] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/polytone-26.1.2-6.7.2-neoforge.jar > exp4j-0.4.8.jar [14:13:01] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - ~libraries/net/neoforged/neoforge/26.1.2.109/neoforge-26.1.2.109-universal.jar > net.neoforged.neoforge-coremods-26.1.2.109.jar [14:13:01] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/polytone-26.1.2-6.7.2-neoforge.jar > nexp-1.2.1.jar [14:13:01] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Building game content classloader: - codecui (jar(mods/polytone-26.1.2-6.7.2-neoforge.jar > codecui-neoforge-26.1.2-1.4.5.jar)) - minecraft (jar(~libraries/net/neoforged/minecraft-server-patched/26.1.2.109/minecraft-server-patched-26.1.2.109.jar)) - mixinextras.neoforge (jar(~libraries/net/neoforged/neoforge/26.1.2.109/neoforge-26.1.2.109-universal.jar > mixinextras-neoforge-0.5.4.jar)) - neoforge (jar(~libraries/net/neoforged/neoforge/26.1.2.109/neoforge-26.1.2.109-universal.jar)) - net.neoforged.fml.generated (empty(VirtualJar/net.neoforged.fml.generated)) - polytone (jar(mods/polytone-26.1.2-6.7.2-neoforge.jar)) [14:13:01] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Built game content classloader in 59ms [14:13:01] [main/INFO] [mixin/]: Compatibility level set to JAVA_25 WARNING: A restricted method in java.lang.System has been called WARNING: java.lang.System::load has been called by com.sun.jna.Native in an unnamed module (file:/srv/pack/libraries/net/java/dev/jna/jna/5.17.0/jna-5.17.0.jar) WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module WARNING: Restricted methods will be blocked in a future release unless native access is enabled [14:13:02] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.4). WARNING: A terminally deprecated method in sun.misc.Unsafe has been called WARNING: sun.misc.Unsafe::objectFieldOffset has been called by org.joml.MemUtil$MemUtilUnsafe (file:/srv/pack/libraries/org/joml/joml/1.10.8/joml-1.10.8.jar) WARNING: Please consider reporting this to the maintainers of class org.joml.MemUtil$MemUtilUnsafe WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release [14:13:09] [modloading-worker-0/ERROR] [ne.ne.fm.ja.FMLModContainer/LOADING]: Failed to create mod instance. ModID: polytone, class net.mehvahdjukaar.polytone.platform.PolytoneForge java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/ClientLevel at java.base/java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:?] {} at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:2985) ~[?:?] {} at java.base/java.lang.Class.getConstructors(Class.java:2025) ~[?:?] {} at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:91) [loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) [loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$3(ModLoader.java:203) [loader-11.0.15.jar:11.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:955) [?:?] {} at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:932) [?:?] {} at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:504) [?:?] {} at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511) [?:?] {} at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450) [?:?] {} at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019) [?:?] {} at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187) [?:?] {} Caused by: java.lang.ClassNotFoundException: net.minecraft.client.multiplayer.ClientLevel at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:377) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:557) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490) ~[?:?] {} at net.neoforged.fml.classloading.ModuleClassLoader.loadClass(ModuleClassLoader.java:247) ~[loader-11.0.15.jar:11.0] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490) ~[?:?] {} ... 13 more [14:13:09] [modloading-worker-0/INFO] [CodecUI/]: Codec construction mixins inactive (Codec, MapCodec, RecordCodecBuilder) - expected on NeoForge; using reflective schema inference (numeric ranges recovered, optional-field defaults not). [14:13:09] [modloading-worker-0/INFO] [ne.ne.ne.co.NeoForgeMod/NEOFORGE-MOD]: NeoForge mod loading, version 26.1.2.109, for MC 26.1.2 [14:13:10] [main/FATAL] [ne.ne.fm.ModLoader/LOADING]: Failed to wait for future Mod Construction, 1 errors found [14:13:10] [main/ERROR] [minecraft/CrashReport]: Negative index in crash report handler (0/11) [14:13:10] [main/FATAL] [ne.ne.ne.co.NeoForgeMod/]: Preparing crash report with UUID ff6ebff3-b9fa-4010-b835-9bb8797420b2 [14:13:10] [main/FATAL] [ne.ne.ne.se.lo.ServerModLoader/]: Crash report saved to ./crash-reports/crash-2026-09-24_14.13.10-fml.txt [14:13:10] [main/FATAL] [ne.ne.ne.co.NeoForgeMod/]: Preparing crash report with UUID fafb6fb8-f99b-45ee-90cb-c6b0a5a83cbe ---- Minecraft Crash Report ---- // Don't be sad, have a hug! <3 Time: 2026-09-24 14:13:10 Description: Mod loading failures have occurred; consult the issue messages for more details net.neoforged.neoforge.logging.CrashReportExtender$ModLoadingCrashException: Mod loading has failed A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: main Stacktrace: at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:377) ~[?:?] {} -- Mod loading issue for: polytone -- Details: Caused by 0: java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/ClientLevel at java.base/java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:?] {} at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:2985) ~[?:?] {} at java.base/java.lang.Class.getConstructors(Class.java:2025) ~[?:?] {} at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:91) ~[loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) ~[loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$3(ModLoader.java:203) ~[loader-11.0.15.jar:11.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:955) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:932) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:504) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187) ~[?:?] {} Mod file: /srv/pack/mods/polytone-26.1.2-6.7.2-neoforge.jar Failure message: Polytone (polytone) has failed to load correctly java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/ClientLevel Mod version: 26.1.2-6.7.2 Mod issues URL: https://github.com/MehVahdJukaar/polytone/issues Exception message: java.lang.ClassNotFoundException: net.minecraft.client.multiplayer.ClientLevel Stacktrace: at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:377) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:557) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490) ~[?:?] {} at net.neoforged.fml.classloading.ModuleClassLoader.loadClass(ModuleClassLoader.java:247) ~[loader-11.0.15.jar:11.0] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490) ~[?:?] {} at java.base/java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:?] {} at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:2985) ~[?:?] {} at java.base/java.lang.Class.getConstructors(Class.java:2025) ~[?:?] {} at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:91) ~[loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) ~[loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$3(ModLoader.java:203) ~[loader-11.0.15.jar:11.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:955) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:932) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:504) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187) ~[?:?] {} -- System Details -- Details: Minecraft Version: 26.1.2 Minecraft Version ID: 26.1.2 Operating System: Linux (amd64) version 5.15.0-1114-realtime Java Version: 25.0.4.1, Eclipse Adoptium Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Eclipse Adoptium Memory: 114916160 bytes (109 MiB) / 223346688 bytes (213 MiB) up to 805306368 bytes (768 MiB) Memory (heap): init: 048MiB, used: 102MiB, committed: 213MiB, max: 768MiB Memory (non-head): init: 007MiB, used: 102MiB, committed: 104MiB, max: 000MiB 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): 28224.94 Swap memory total (MiB): 4096.00 Swap memory used (MiB): 132.01 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: 2559871.50, total: 7564391.00 JVM Flags: 0 total; Debug Flags: 0 total; Class Processors: 00.00%: neoforge:computing_frames (marker) 00.00%: neoforge:runtime_enum_extender 05.53%: neoforge:access_transformer 00.26%: neoforge:mixin 00.00%: neoforge:simple_processors_default (marker) 00.02%: neoforge.coremods:field_to_getter.net.minecraft.world.level.biome.biome 00.02%: neoforge.coremods:field_to_getter.net.minecraft.world.level.block.flowerpotblock 00.02%: neoforge.coremods:field_to_getter.net.minecraft.world.level.levelgen.structure.structure 00.41%: neoforge.coremods:method_redirector Mod List: codecui-neoforge-26.1.2-1.4.5.jar |CodecUI |codecui |26.1.2-1.4.5 |Manifest: 566d463855964714224a05512fd0bc08022f722715b3c058d98f12f39eecd1fb minecraft-server-patched-26.1.2.109.jar |Minecraft |minecraft |26.1.2 |Manifest: 38f9b3f079186775c44021b276164cff0fd6e15971f92f5368da2147590493fd neoforge-26.1.2.109-universal.jar |NeoForge |neoforge |26.1.2.109 |Manifest: 8468d92a2416ddda69b6877a51f464e201b6313596ccd036368d57be795fc255 polytone-26.1.2-6.7.2-neoforge.jar |Polytone |polytone |26.1.2-6.7.2 |Manifest: ec8b258e281a5c7abf345df0783a5b1f4b049a324a9bf06834ee46f543d4ba9a Crash Report UUID: fafb6fb8-f99b-45ee-90cb-c6b0a5a83cbe FML: 11.0.15 NeoForge: 26.1.2.109 [14:13:10] [main/ERROR] [minecraft/Main]: Failed to start the minecraft server net.neoforged.fml.ModLoadingException: Loading errors encountered: - Polytone (polytone) has failed to load correctly java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/ClientLevel at net.neoforged.fml.ModLoader.waitForFuture(ModLoader.java:253) ~[loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.dispatchParallelTask(ModLoader.java:216) ~[loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.constructMods(ModLoader.java:124) ~[loader-11.0.15.jar:11.0] {} at net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:101) ~[loader-11.0.15.jar:11.0] {} at TRANSFORMER/neoforge@26.1.2.109/net.neoforged.neoforge.internal.CommonModLoader.begin(CommonModLoader.java:49) ~[neoforge-26.1.2.109-universal.jar:?] {} at TRANSFORMER/neoforge@26.1.2.109/net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:30) ~[neoforge-26.1.2.109-universal.jar:?] {} at TRANSFORMER/minecraft@26.1.2/net.minecraft.server.Main.main(Main.java:114) [minecraft-server-patched-26.1.2.109.jar:?] {} at net.neoforged.fml.startup.Server.main(Server.java:19) [loader-11.0.15.jar:11.0] {} at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[?:?] {} at java.base/java.lang.reflect.Method.invoke(Method.java:565) ~[?:?] {} 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:104) ~[?:?] {} at java.base/java.lang.reflect.Method.invoke(Method.java:565) ~[?:?] {} at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) [server.jar:0.1.35] {} [14:13:10] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Closing FML Loader 2530e734 [14:13:10] [main/INFO] [ne.ne.fm.ModLoader/]: Clearing ModLoader net.neoforged.fml.startup.FatalStartupException: Couldn't find Minecraft server thread. Startup likely failed. at net.neoforged.fml.startup.Server.main(Server.java:23) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:565) 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:104) at java.base/java.lang.reflect.Method.invoke(Method.java:565) at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) Exiting...