SansSerif_

Thank you so much! The mod finally works! Have a great day and thank you again!

Oh okay, may I ask, how could I fix that? I have some experience with java itself, and I have used only maven, but Gradle and this stuff is a new world to me. Thanks!

Somehow managed to learn git, so here you go - https://github.com/SansSerif1/creatediscord

Hello, if you mean the mod file, I just copy the projectdir/build/libs/CreateDiscord-1.0.jar to the server`s mods folder. If you mean the server jar, i use the "forge-1.16.5-36.1.4.jar" one. I have tried reinstalling the forge server, but even after that, it throws out the same error (java.lang.NoSuchMethodError: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.player.PlayerEntity.getDisplayName()') EDIT: I could attach the entire project if you would like to check if i broke the project. Also I used Minecraft Development IntelliJ plugin to create the project if this could somehow help.

Thanks for the reply, unfortunately, I used "gradlew build" and "gradlew runServer", but it still throws this out, when I start my server with the mod: [09:58:32] [Server thread/ERROR] [ne.mi.ev.EventBus/EVENTBUS]: Exception caught during firing event: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.player.PlayerEntity.getDisplayName()' Index: 2 Listeners: 0: NORMAL 1: ASM: net.minecraftforge.common.ForgeInternalHandler@4181b931 playerLogin(Lnet/minecraftforge/event/entity/player/PlayerEvent$PlayerLoggedInEvent;)V 2: ASM: class me.sansserif.creatediscord.CreateDiscord$RegistryEvents onEvent(Lnet/minecraftforge/event/entity/player/PlayerEvent$PlayerLoggedInEvent;)V java.lang.NoSuchMethodError: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.player.PlayerEntity.getDisplayName()' at me.sansserif.creatediscord.CreateDiscord$RegistryEvents.onEvent(CreateDiscord.java:68) at net.minecraftforge.eventbus.ASMEventHandler_15_RegistryEvents_onEvent_PlayerLoggedInEvent.invoke(.dynamic) at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) at net.minecraftforge.fml.hooks.BasicEventHooks.firePlayerLoggedIn(BasicEventHooks.java:44) at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:231) at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) at java.base/java.lang.Thread.run(Thread.java:834) [09:58:52] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception java.lang.NoSuchMethodError: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.player.PlayerEntity.getDisplayName()' at me.sansserif.creatediscord.CreateDiscord$RegistryEvents.onEvent(CreateDiscord.java:68) ~[creatediscord:1.0] {re:classloading} at net.minecraftforge.eventbus.ASMEventHandler_15_RegistryEvents_onEvent_PlayerLoggedInEvent.invoke(.dynamic) ~[?:?] {} at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.fml.hooks.BasicEventHooks.firePlayerLoggedIn(BasicEventHooks.java:44) ~[forge:?] {re:classloading} at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:231) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) ~[?:?] {re:classloading} at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) ~[?:?] {re:classloading} at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at java.lang.Thread.run(Thread.java:834) [?:?] {} [09:58:53] [Server thread/FATAL] [ne.mi.co.ForgeMod/]: Preparing crash report with UUID 7a6a47a2-d5e5-4cbc-9b5f-00fedd7f7c5e Couldn't it be because of a broken server?

I have changed the events to PlayerLogged(In/Out)Event, so now the entire class looks like this: @Mod("creatediscord") public class CreateDiscord { // Directly reference a log4j logger. private static final Logger LOGGER = LogManager.getLogger(); public CreateDiscord() { // Register the setup method for modloading FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup); // Register ourselves for server and other game events we are interested in MinecraftForge.EVENT_BUS.register(this); } private void setup(final FMLCommonSetupEvent event) { // some preinit code LOGGER.info("Running CreateDiscord"); } // You can use SubscribeEvent and let the Event Bus discover methods to call @SubscribeEvent public void onServerStarting(FMLServerStartingEvent event) { // do something when the server starts JDABuilder jdaBuilder = JDABuilder.createDefault("Bot token :)"); JDA jda; //ENABLE STUFF jdaBuilder.addEventListeners(new RegistryEvents()); //ACTIVITY jdaBuilder.setStatus(OnlineStatus.IDLE); try { jda = jdaBuilder.build(); } catch (LoginException e) { e.printStackTrace(); } } // You can use EventBusSubscriber to automatically subscribe events on the contained class (this is subscribing to the MOD // Event bus for receiving Registry Events) @Mod.EventBusSubscriber public static class RegistryEvents extends ListenerAdapter { public static TextChannel textChannel; @SubscribeEvent public static void onEvent(PlayerEvent.PlayerLoggedInEvent e) { // register join textChannel.sendMessage(e.getPlayer().getDisplayName().getString() + " joined the game").queue(); } @SubscribeEvent public static void onEvent(PlayerEvent.PlayerLoggedOutEvent e) { // register leave textChannel.sendMessage(e.getPlayer().getDisplayName().getString() + " left the game").queue(); } public void onReady(ReadyEvent e) { textChannel = e.getJDA().getTextChannelById("Channel ID :)"); } } } My build.gradle looks like this: buildscript { repositories { maven { url = 'https://files.minecraftforge.net/maven' } jcenter() mavenCentral() } dependencies { classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: '3.+', changing: true } } plugins { id 'com.github.johnrengelman.shadow' version '4.0.0' id 'java' } apply plugin: 'net.minecraftforge.gradle' // extraLine "PK: org/apache/commons/collections4 me/sansserif/org/apache/commons/collections4" group = 'me.sansserif' version = '1.0' archivesBaseName = 'CreateDiscord' sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8' shadowJar { // Relocate fluent-hc to prevent conflicts with other mods that include it //relocate 'org.apache.commons.collections.collections4', 'me.sansserif.org.apache.commons.collections4' configurations = [project.configurations.shadow] classifier '' relocate('org.apache.commons', 'org.creatediscord.apache.commons') //relocated packages needed by JDA relocate('gnu.trove', 'gnu.creatediscord.trove') } minecraft { // The mappings can be changed at any time, and must be in the following format. // snapshot_YYYYMMDD Snapshot are built nightly. // stable_# Stables are built at the discretion of the MCP team. // Use non-default mappings at your own risk. they may not always work. // Simply re-run your setup task after changing the mappings to update your workspace. mappings channel: 'snapshot', version: '20210309-1.16.5' // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable. // accessTransformer = file('src/main/resources/META-INF/accesstransformer.cfg') // Default run configurations. // These can be tweaked, removed, or duplicated as needed. runs { client { workingDirectory project.file('run') // Recommended logging data for a userdev environment property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP' // Recommended logging level for the console property 'forge.logging.console.level', 'debug' mods { creatediscord { source sourceSets.main } } } server { workingDirectory project.file('run') // Recommended logging data for a userdev environment property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP' // Recommended logging level for the console property 'forge.logging.console.level', 'debug' mods { creatediscord { source sourceSets.main } } } data { workingDirectory project.file('run') // Recommended logging data for a userdev environment property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP' // Recommended logging level for the console property 'forge.logging.console.level', 'debug' // Specify the modid for data generation, where to output the resulting resource, and where to look for existing resources. args '--mod', 'creatediscord', '--all', '--output', file('src/generated/resources/'), '--existing', file('src/main/resources/') mods { creatediscord { source sourceSets.main } } } } } // Include resources generated by data generators. sourceSets.main.resources { srcDir 'src/generated/resources' } configurations { shade compile.extendsFrom shade } repositories { flatDir { dirs 'libs' } } dependencies { shadow 'net.dv8tion:JDA:4.2.1_253' //the discord api shadow 'org.apache.commons:commons-collections4:4.4' //a package needed by jda shadow 'gnu.trove:trove:3.0.3' //when i started the mod, it threw NoClassDefFoundError, so I added it too // Specify the version of Minecraft to use, If this is any group other then 'net.minecraft' it is assumed // that the dep is a ForgeGradle 'patcher' dependency. And it's patches will be applied. // The userdev artifact is a special name and will get all sorts of transformations applied to it. minecraft 'net.minecraftforge:forge:1.16.5-36.1.4' // You may put jars on which you depend on in ./libs or you may define them like so.. // compile "some.group:artifact:version:classifier" // compile "some.group:artifact:version" // Real examples // compile 'com.mod-buildcraft:buildcraft:6.0.8:dev' // adds buildcraft to the dev env // compile 'com.googlecode.efficient-java-matrix-library:ejml:0.24' // adds ejml to the dev env // The 'provided' configuration is for optional dependencies that exist at compile-time but might not at runtime. // provided 'com.mod-buildcraft:buildcraft:6.0.8:dev' // These dependencies get remapped to your current MCP mappings // deobf 'com.mod-buildcraft:buildcraft:6.0.8:dev' // For more info... // http://www.gradle.org/docs/current/userguide/artifact_dependencies_tutorial.html // http://www.gradle.org/docs/current/userguide/dependency_management.html } // Example for how to get properties into the manifest for reading by the runtime.. jar { manifest { attributes([ "Specification-Title" : "creatediscord", "Specification-Vendor" : "SansSerif", "Specification-Version" : "1", // We are version 1 of ourselves "Implementation-Title" : project.name, "Implementation-Version" : project.version, "Implementation-Vendor" : "SansSerif", "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ") ]) } configurations.shade.each { dep -> from(project.zipTree(dep)) { exclude 'META-INF', 'META-INF/**' } } } project.tasks.build.dependsOn shadowJar jar.finalizedBy('reobfJar') But even after changing the events to PlayerLogged..Event, it throws this: [08:16:10] [Server thread/ERROR] [ne.mi.ev.EventBus/EVENTBUS]: Exception caught during firing event: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.player.PlayerEntity.getDisplayName()' Index: 2 Listeners: 0: NORMAL 1: ASM: net.minecraftforge.common.ForgeInternalHandler@38a07bdc playerLogin(Lnet/minecraftforge/event/entity/player/PlayerEvent$PlayerLoggedInEvent;)V 2: ASM: class me.sansserif.creatediscord.CreateDiscord$RegistryEvents onEvent(Lnet/minecraftforge/event/entity/player/PlayerEvent$PlayerLoggedInEvent;)V java.lang.NoSuchMethodError: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.player.PlayerEntity.getDisplayName()' at me.sansserif.creatediscord.CreateDiscord$RegistryEvents.onEvent(CreateDiscord.java:72) at net.minecraftforge.eventbus.ASMEventHandler_15_RegistryEvents_onEvent_PlayerLoggedInEvent.invoke(.dynamic) at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) at net.minecraftforge.fml.hooks.BasicEventHooks.firePlayerLoggedIn(BasicEventHooks.java:44) at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:231) at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) at java.base/java.lang.Thread.run(Thread.java:834) [08:16:12] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception java.lang.NoSuchMethodError: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.player.PlayerEntity.getDisplayName()' at me.sansserif.creatediscord.CreateDiscord$RegistryEvents.onEvent(CreateDiscord.java:72) ~[creatediscord:1.0] {re:classloading} at net.minecraftforge.eventbus.ASMEventHandler_15_RegistryEvents_onEvent_PlayerLoggedInEvent.invoke(.dynamic) ~[?:?] {} at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.fml.hooks.BasicEventHooks.firePlayerLoggedIn(BasicEventHooks.java:44) ~[forge:?] {re:classloading} at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:231) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) ~[?:?] {re:classloading} at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) ~[?:?] {re:classloading} at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at java.lang.Thread.run(Thread.java:834) [?:?] {} [08:16:13] [Server thread/FATAL] [ne.mi.co.ForgeMod/]: Preparing crash report with UUID b9d7c1a7-859d-4190-a0bc-74c8187051af EDIT: I didnt really answer the question how did I create the mod Jar, I just press Run in IntelliJ and copy the projectdir/build/libs/mod.jar to the serverdir/mods/ Also, thanks for a fast reply and have a good day!

Hello! Sorry if i posted this in a wrong forum, ive just created my account because i have no idea what to do now. I have somehow managed to create a code listening on player server join (the mod is supposed to be server only), and it looks like this: @Mod.EventBusSubscriber public static class RegistryEvents extends ListenerAdapter { public static TextChannel textChannel; //a discord textchannel set from another event @SubscribeEvent public static void onEvent(EntityJoinWorldEvent e) { if (e.getEntity() instanceof PlayerEntity) { // register join textChannel.sendMessage(e.getEntity().getDisplayName().getString() + " joined the game").queue(); } } and when I add this mod to my server and start it up, it works. When i join, it throws this and crashes: [21:29:01] [Server thread/ERROR] [ne.mi.ev.EventBus/EVENTBUS]: Exception caught during firing event: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.Entity.getDisplayName()' Index: 3 Listeners: 0: HIGHEST 1: ASM: net.minecraftforge.common.ForgeInternalHandler@50fb855c onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V 2: NORMAL 3: ASM: class me.sansserif.creatediscord.CreateDiscord$RegistryEvents onEvent(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V java.lang.NoSuchMethodError: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.Entity.getDisplayName()' at me.sansserif.creatediscord.CreateDiscord$RegistryEvents.onEvent(CreateDiscord.java:72) at net.minecraftforge.eventbus.ASMEventHandler_16_RegistryEvents_onEvent_EntityJoinWorldEvent.invoke(.dynamic) at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) at net.minecraft.world.server.ServerWorld.func_217448_f(ServerWorld.java:788) at net.minecraft.world.server.ServerWorld.func_217435_c(ServerWorld.java:780) at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:184) at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) at java.base/java.lang.Thread.run(Thread.java:834) [21:29:25] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception java.lang.NoSuchMethodError: 'net.minecraft.util.text.ITextComponent net.minecraft.entity.Entity.getDisplayName()' at me.sansserif.creatediscord.CreateDiscord$RegistryEvents.onEvent(CreateDiscord.java:72) ~[creatediscord:1.0] {re:classloading} at net.minecraftforge.eventbus.ASMEventHandler_16_RegistryEvents_onEvent_EntityJoinWorldEvent.invoke(.dynamic) ~[?:?] {} at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {} at net.minecraft.world.server.ServerWorld.func_217448_f(ServerWorld.java:788) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.world.server.ServerWorld.func_217435_c(ServerWorld.java:780) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:184) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) ~[?:?] {re:classloading} at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) ~[?:?] {re:classloading} at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at java.lang.Thread.run(Thread.java:834) [?:?] {} [21:29:32] [Server thread/FATAL] [ne.mi.co.ForgeMod/]: Preparing crash report with UUID c2f18443-d7b0-4832-8eee-569acf0fd479 I have tried googling and some pages said it has something in common with sides, so I tried the EntityJoinWorldEvent instead of PlayerLoggedInEvent, but still doesnt work. I don`t not know why it throws out NoSuchMethodError, as IntelliJ offers me the getDisplayName() method, so it probably exists if I am not wrong. Thanks in advance, and have a great day!