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 Fabric checks and setup...
fabric-server-launcher.jar present. Moving on...
Starting server...
Minecraft version:              26.1.2
Modloader:                      Fabric
Modloader version:              0.19.5
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
Launcher JAR:                   fabric-server-launcher.jar
Run Command:       /opt/java-25/bin/java -Dlog4j2.formatMsgNoLookups=true  -jar fabric-server-launcher.jar 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)
Starting net.fabricmc.loader.impl.game.minecraft.BundlerClassPathCapture
[22:09:32] [main/INFO]: Loading Minecraft 26.1.2 with Fabric Loader 0.19.5
[22:09:32] [main/INFO]: Mappings not present!
[22:09:32] [main/INFO]: Loading 42 mods:
	- fabric-api 0.155.3+26.1.2
	   |-- fabric-api-base 2.0.3+ece063234c
	   |-- fabric-api-lookup-api-v1 2.0.12+d5a053b64c
	   |-- fabric-biome-api-v1 18.0.5+2fa62b4e4c
	   |-- fabric-block-api-v1 3.0.2+ec56b6014c
	   |-- fabric-block-getter-api-v2 2.0.6+ec56b6014c
	   |-- fabric-command-api-v2 3.0.5+e2bdee784c
	   |-- fabric-content-registries-v0 11.3.1+af8a297c4c
	   |-- fabric-convention-tags-v2 4.6.2+4f11f7994c
	   |-- fabric-crash-report-info-v1 1.0.3+9f78a5a84c
	   |-- fabric-creative-tab-api-v1 5.0.12+a981f2874c
	   |-- fabric-data-attachment-api-v1 2.2.10+44a0bd1d4c
	   |-- fabric-data-generation-api-v1 24.3.4+cda368334c
	   |-- fabric-debug-api-v1 1.0.1+c792624d4c
	   |-- fabric-dimensions-v1 5.1.7+ad343a8d4c
	   |-- fabric-entity-events-v1 5.0.2+e2bdee784c
	   |-- fabric-events-interaction-v0 5.2.3+07b380be4c
	   |-- fabric-game-rule-api-v1 4.0.5+d871b99e4c
	   |-- fabric-item-api-v1 14.3.0+6d1aaa724c
	   |-- fabric-lifecycle-events-v1 4.1.1+df84eb3d4c
	   |-- fabric-loot-api-v3 3.0.12+00a1fba64c
	   |-- fabric-menu-api-v1 2.0.15+d871b99e4c
	   |-- fabric-message-api-v1 7.0.5+dae8ce3e4c
	   |-- fabric-networking-api-v1 6.3.2+a217cccf4c
	   |-- fabric-object-builder-api-v1 23.1.1+abb459f14c
	   |-- fabric-particles-v1 5.0.16+b61fef434c
	   |-- fabric-permission-api-v1 1.0.3+5730ecca4c
	   |-- fabric-recipe-api-v1 9.0.17+be4b75ae4c
	   |-- fabric-registry-sync-v0 7.1.1+2fa62b4e4c
	   |-- fabric-rendering-fluids-v1 6.0.1+d871b99e4c
	   |-- fabric-resource-conditions-api-v1 6.1.0+83dd0ba34c
	   |-- fabric-resource-loader-v0 3.3.17+4fc5413f4c
	   |-- fabric-resource-loader-v1 2.0.10+7c44c7324c
	   |-- fabric-serialization-api-v1 2.0.3+11a26f314c
	   |-- fabric-tag-api-v1 2.1.1+371cf5db4c
	   |-- fabric-transfer-api-v1 8.0.6+357ea7334c
	   \-- fabric-transitive-access-wideners-v1 8.1.3+3ff549fb4c
	- fabricloader 0.19.5
	   \-- mixinextras 0.5.5
	- improperui 26.1-0.0.7-BETA
	- java 25
	- minecraft 26.1.2
[22:09:33] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=file:/srv/pack/libraries/net/fabricmc/sponge-mixin/0.17.4+mixin.0.8.7/sponge-mixin-0.17.4+mixin.0.8.7.jar Service=Knot/Fabric Env=SERVER
[22:09:34] [main/INFO]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.5).
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
[22:09:41] [main/ERROR]: Failed to start the minecraft server
java.lang.RuntimeException: Could not execute entrypoint stage 'main' due to errors, provided by 'improperui' at 'io.github.itzispyder.improperui.ImproperUI'!
	at net.fabricmc.loader.impl.FabricLoaderImpl.lambda$invokeEntrypoints$0(FabricLoaderImpl.java:413)
	at net.fabricmc.loader.impl.util.ExceptionUtil.gatherExceptions(ExceptionUtil.java:33)
	at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:411)
	at net.fabricmc.loader.impl.game.minecraft.Hooks.startServer(Hooks.java:63)
	at knot//net.minecraft.server.Main.main(Main.java:111)
	at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:517)
	at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72)
	at net.fabricmc.loader.impl.launch.knot.KnotServer.main(KnotServer.java:23)
	at net.fabricmc.loader.impl.launch.server.FabricServerLauncher.main(FabricServerLauncher.java:69)
	at net.fabricmc.installer.ServerLauncher.main(ServerLauncher.java:69)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/KeyMapping
	at knot//io.github.itzispyder.improperui.ImproperUI.<clinit>(ImproperUI.java:14)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:547)
	at net.fabricmc.loader.impl.util.DefaultLanguageAdapter.create(DefaultLanguageAdapter.java:53)
	at net.fabricmc.loader.impl.entrypoint.EntrypointStorage$NewEntry.getOrCreate(EntrypointStorage.java:124)
	at net.fabricmc.loader.impl.entrypoint.EntrypointContainerImpl.getEntrypoint(EntrypointContainerImpl.java:53)
	at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409)
	... 7 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.KeyMapping
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:580)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490)
	at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:239)
	at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490)
	... 14 more
Exiting...