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 1.21.2 - Java 21 Running Fabric checks and setup... fabric-server-launcher.jar present. Moving on... Starting server... Minecraft version: 1.21.2 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-21/bin/java Wait For User Input: false Launcher JAR: fabric-server-launcher.jar Run Command: /opt/java-21/bin/java -Dlog4j2.formatMsgNoLookups=true -jar fabric-server-launcher.jar 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) Starting net.fabricmc.loader.impl.game.minecraft.BundlerClassPathCapture [21:38:43] [main/INFO]: Loading Minecraft 1.21.2 with Fabric Loader 0.19.5 [21:38:43] [main/INFO]: Loading 56 mods: - deltaboxlib 3.0.1 - fabric-api 0.106.1+1.21.2 |-- fabric-api-base 0.4.48+c47b9d4373 |-- fabric-api-lookup-api-v1 1.6.78+c47b9d4373 |-- fabric-biome-api-v1 14.0.5+c47b9d4373 |-- fabric-block-api-v1 1.0.28+c47b9d4373 |-- fabric-block-view-api-v2 1.0.16+c47b9d4373 |-- fabric-command-api-v1 1.2.56+f71b366f73 |-- fabric-command-api-v2 2.2.35+c47b9d4373 |-- fabric-commands-v0 0.2.73+df3654b373 |-- fabric-content-registries-v0 9.1.5+c47b9d4373 |-- fabric-convention-tags-v1 2.1.0+7f945d5b73 |-- fabric-convention-tags-v2 2.9.0+c47b9d4373 |-- fabric-crash-report-info-v1 0.3.3+c47b9d4373 |-- fabric-data-attachment-api-v1 1.1.38+c47b9d4373 |-- fabric-data-generation-api-v1 21.0.14+c47b9d4373 |-- fabric-dimensions-v1 4.0.7+c47b9d4373 |-- fabric-entity-events-v1 2.0.5+c47b9d4373 |-- fabric-events-interaction-v0 2.0.9+c47b9d4373 |-- fabric-game-rule-api-v1 1.0.59+c47b9d4373 |-- fabric-item-api-v1 11.1.5+c47b9d4373 |-- fabric-item-group-api-v1 4.1.15+e7c9ab6673 |-- fabric-lifecycle-events-v1 2.3.22+c47b9d4373 |-- fabric-loot-api-v2 3.0.24+3f89f5a573 |-- fabric-loot-api-v3 1.0.12+c47b9d4373 |-- fabric-message-api-v1 6.0.19+c47b9d4373 |-- fabric-networking-api-v1 4.3.3+56ec7ac673 |-- fabric-object-builder-api-v1 17.0.7+c47b9d4373 |-- fabric-particles-v1 4.0.8+c47b9d4373 |-- fabric-recipe-api-v1 7.0.2+c47b9d4373 |-- fabric-registry-sync-v0 5.2.0+56ec7ac673 |-- fabric-rendering-data-attachment-v1 0.3.54+73761d2e73 |-- fabric-rendering-fluids-v1 3.1.13+c47b9d4373 |-- fabric-resource-conditions-api-v1 5.0.8+c47b9d4373 |-- fabric-resource-loader-v0 3.0.5+c47b9d4373 |-- fabric-screen-handler-api-v1 1.3.98+c47b9d4373 |-- fabric-transfer-api-v1 5.4.0+c47b9d4373 \-- fabric-transitive-access-wideners-v1 6.1.8+c47b9d4373 - fabric-language-kotlin 1.14.1+kotlin.2.4.20 |-- org_jetbrains_kotlin_kotlin-reflect 2.4.20 |-- org_jetbrains_kotlin_kotlin-stdlib 2.4.20 |-- org_jetbrains_kotlin_kotlin-stdlib-jdk7 2.4.20 |-- org_jetbrains_kotlin_kotlin-stdlib-jdk8 2.4.20 |-- org_jetbrains_kotlinx_atomicfu-jvm 0.33.0 |-- org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm 1.11.0 |-- org_jetbrains_kotlinx_kotlinx-coroutines-jdk8 1.11.0 |-- org_jetbrains_kotlinx_kotlinx-datetime-jvm 0.8.0 |-- org_jetbrains_kotlinx_kotlinx-io-bytestring-jvm 0.9.1 |-- org_jetbrains_kotlinx_kotlinx-io-core-jvm 0.9.1 |-- org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm 1.11.0 |-- org_jetbrains_kotlinx_kotlinx-serialization-core-jvm 1.11.0 \-- org_jetbrains_kotlinx_kotlinx-serialization-json-jvm 1.11.0 - fabricloader 0.19.5 \-- mixinextras 0.5.5 - java 21 - minecraft 1.21.2 [21:38:43] [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 [21:38:44] [main/INFO]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.5). [21:38:52] [main/ERROR]: Failed to start the minecraft server java.lang.RuntimeException: Could not execute entrypoint stage 'main' due to errors, provided by 'deltaboxlib' at 'com.dannbrown.deltaboxlib.platform.ModInitFabric'! at net.fabricmc.loader.impl.FabricLoaderImpl.lambda$invokeEntrypoints$0(FabricLoaderImpl.java:413) ~[fabric-loader-0.19.5.jar:?] at net.fabricmc.loader.impl.util.ExceptionUtil.gatherExceptions(ExceptionUtil.java:33) ~[fabric-loader-0.19.5.jar:?] at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:411) ~[fabric-loader-0.19.5.jar:?] at net.fabricmc.loader.impl.game.minecraft.Hooks.startServer(Hooks.java:63) ~[fabric-loader-0.19.5.jar:?] at knot/net.minecraft.server.Main.main(Main.java:111) [server-intermediary.jar:?] at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:517) [fabric-loader-0.19.5.jar:?] at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) [fabric-loader-0.19.5.jar:?] at net.fabricmc.loader.impl.launch.knot.KnotServer.main(KnotServer.java:23) [fabric-loader-0.19.5.jar:?] at net.fabricmc.loader.impl.launch.server.FabricServerLauncher.main(FabricServerLauncher.java:69) [fabric-loader-0.19.5.jar:?] at net.fabricmc.installer.ServerLauncher.main(ServerLauncher.java:69) [fabric-server-launcher.jar:1.1.2] Caused by: java.lang.NoSuchMethodError: 'void net.minecraft.class_4309.(com.google.gson.Gson, java.lang.String)' at knot/com.dannbrown.deltaboxlib.common.registrate.providers.trades.VillagerTradeDeserializer.(VillagerTradeDeserializer.kt:20) ~[deltaboxlib-fabric-3.0.1+1.21.1.jar:?] at knot/com.dannbrown.deltaboxlib.platform.fabric.loaders.DeltaboxLibLoadTradesFabric.onDatapackReload(DeltaboxLibLoadTradesFabric.kt:59) ~[deltaboxlib-fabric-3.0.1+1.21.1.jar:?] at knot/com.dannbrown.deltaboxlib.platform.ModInitFabric.onInitialize(ModInitFabric.kt:22) ~[deltaboxlib-fabric-3.0.1+1.21.1.jar:?] at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:409) ~[fabric-loader-0.19.5.jar:?] ... 7 more Exiting...