Отладка

Logs are an essential part when it comes to debugging your server and figuring what went wrong. This page will show some basic logging examples and will try to explain what you can do to fix your issues, when encountering them. If you’re looking for details about specific mods that can cause problems with SpongeForge, then we recommend checking the Mod Compatibility page first.

Контрольный список

Whenever you encounter a crash or warning make sure you set SpongeForge or SpongeVanilla up correctly. Here’s a short checklist to help you out. If you’re unsure on how to acquire the information needed, have a look at the Лог-файлы page. It explains how you get the desired answers out of your log files.

Установлена ли Java 8 и использует ли её Sponge?

Для Sponge необходима Java 8. На Java 7 или ниже он будет падать.

Are there any other coremods installed?

Some coremods modify Forge or Minecraft in a way that makes it impossible to run SpongeForge properly. If you have coremods installed and Sponge crashes, try to remove them and test again. Please report any incompatible coremods on GitHub. This allows staff to solve these issues as soon as possible.

Все ли ваши плагины собраны на выбранной вами сборке Sponge?

SpongeAPI is subject to change sometimes. When you try to use an older plugin on the most recent Sponge build and a crash occurs, try downgrading Sponge or contact the plugin author to get an updated plugin. If you’re on an older Sponge build and a recent plugin crashes, try to update Sponge first. If that doesn’t fix the issue, contact the plugin author and ask for a fix.

Определите неисправный плагин

Если проблема не устранена — попытайтесь удалить все плагины и добавляйте их один за другим, перезагружая сервер каждый раз, когда добавляете плагин.

Если вы всё ещё не знаете как и что привело к крашу (падению) обратите внимание на ваш краш-лог. Некоторые распространённые краши и распространённые решения приведены ниже.

Примечание

If you encounter a bug it is usually a good idea to create a backup first, then try to reproduce it, then narrow it down by removing mods. Only then should you report the error. If the error occurs in the absence of Sponge plugins, try removing SpongeForge. If the error persists its not related to Sponge. Its usually a good idea to report bugs to the mod authors first as they have good knowledge of the parts of code they are working with. However you can always contact us for questions. For more information see Сообщение о проблемах.

Общие предупреждения

Распространённым источником ошибок является несовпадение версий SpongeForge и Forge или SpongeForge и плагинов. Для начала посмотрим на предупреждение, которое выводит нам Forge после краша:

WARNING: coremods are present:
   SpongeForge (sponge-1.8-1521-2.1DEV-750.jar)
Contact their authors BEFORE contacting forge

Это не ошибка, это Forge говорит нам, что Coremod (здесь: SpongeForge) установлен. Forge советует вам обратиться к разработчикам Sponge прежде чем обращаться в поддержку Forge за помощью. Пока не о чем беспокоиться.

Распространённые ошибки

Вот несколько распространённых ошибок и некоторые причины их возникновения.

Примечание

Если вы столкнулись с крашем, ошибкой или какой-либо другой неисправностью не перечисленной тут — пожалуйста, сообщите о ней на Форум Sponge (англ.) или на Github (англ.). Это поможет другим, которые тоже столкнулись с этой ошибкой.

Несоответствие SpongeForge и Forge

[12:59:21] [main/ERROR] [mixin/]: @Mixin target net.minecraftforge.event.world.BlockEvent$NeighborNotifyEvent was not found mixins.forge.core.json:event.block.MixinEventNotifyNeighborBlock

This is a common crash when you try to run SpongeForge on the wrong Forge build. Note that the target/Mixin can vary. Always match Forge against SpongeForge! If you’re unsure which version of Forge is required and you already got your SpongeForge build, take a look at the SpongeForge section of Название загруженного файла.

Другие распространённые ошибки

Caused by: java.lang.ClassNotFoundException: org.spongepowered.api.event.state.ServerStartedEvent
Caused by: java.lang.NullPointerException

Первая ошибка указывает на то, что Class отсутствует, вторая ошибка это исключение NullPointer, которое указывает на то, что используемый вами плагин пытается использовать отсутствующие параметры. Это происходит когда вы пытаетесь запустить старый плагин на новой версии SpongeForge или SpongeVanilla и наоборот.

java.lang.AbstractMethodError: net.minecraft.entity.player.EntityPlayerMP.getTabList()Lorg/spongepowered/api/entity/living/player/tab/TabList;
at (...)

Ошибка AbstractMethodError возникает, когда плагин пытается вызвать метод, который ещё не реализован. Проверьте, используете ли вы самую последнюю сборку Sponge и обновите, если доступна новая версия. Если проблема не решилась — сообщите нам об этом через систему отслеживания ошибок или на IRC. Вы также можете запросить реализацию отсутствующих функций.

[Server thread/INFO]: Starting minecraft server version 1.8
[Server thread/ERROR]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: org/spongepowered/api/event/game/state/GameStartingServerEvent

Примечание

Прочтите полный образец краш-лога: SpongeForge 575 краш-лог с плагином, собранным под 750

A NoClassDefFoundError occurs when the plugin tries to access a class that isn’t on the classpath. This happens when the API got adjusted or refactored lately and you’re trying to run an older plugin on a newer build of Sponge and vice versa. Always try to use the correct version! Either ask the Plugin author which Sponge version he builds against or try updating/downgrading your SpongeForge or SpongeVanilla to solve this.

Exceptions at Runtime

There are two kinds of errors that may occur on modded servers:

  • Plugin internal errors, such as NullPointerExceptions during command execution. These errors are logged using the standard Java error handler.

  • Errors during the ticking of worlds or entities. Sponge prints out more structured errors to provide as much information as possible.

Before we look into the details of what caused the exception, make sure that you read all of the error report. Sometimes the error is explained in the error report itself (or a few lines above or below it); sometimes it is indicated by a warning during startup.

The following stacktrace shows an example of this special handling (excluding the line prefix with time and severity):

/******************************************************************************************************************************/
/*                                           Exception occurred during a PhaseState                                           */
/******************************************************************************************************************************/
/* Sponge's tracking system makes a best effort to not throw exceptions randomly                                              */
/* but sometimes it is inevitable. In most cases, something else triggered this                                               */
/* exception and Sponge prevented a crash by catching it. The following stacktrace                                            */
/* can be used to help pinpoint the cause.                                                                                    */
/******************************************************************************************************************************/
/* The PhaseState having an exception: EntityTickPhase                                                                        */
/* The PhaseContext:                                                                                                          */
/*     - Owner: EntityPlayerMP['SomePlayer'/270, l='world', x=119,62, y=82,00, z=260,21]                                      */
/*     - Source: EntityCreeper['Creeper'/346, l='world', x=119,50, y=82,00, z=258,50]                                         */
/*     - CapturedBlockPosition: CaptureBlockPos{pos=null, world=Optional.empty}                                               */
/* org.spongepowered.asm.util.PrettyPrinter@56ec63ef                                                                          */
/******************************************************************************************************************************/
/* StackTrace:                                                                                                                */
/* java.lang.NullPointerException: null                                                                                       */
/*     net.minecraft.util.math.BlockPos.<init>(SourceFile:41)                                                                 */
/*     net.minecraft.pathfinding.PathNavigateGround.func_75494_a(SourceFile:73)                                               */
/*     net.minecraft.pathfinding.PathNavigate.func_75497_a(SourceFile:147)                                                    */
/*     com.example.extendedaiplugin.BrokenAITask.start(BrokenAITask.java:58)                                                  */
/*     org.spongepowered.common.entity.ai.SpongeEntityAICommonSuperclass.func_75249_e(SpongeEntityAICommonSuperclass.java:43) */
/*     net.minecraft.entity.ai.EntityAITasks.func_75774_a(SourceFile:102)                                                     */
/*     net.minecraft.entity.EntityLiving.func_70626_be(EntityLiving.java:763)                                                 */
/*     net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:2350)                                         */
/*     net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:577)                                                  */
/*     net.minecraft.entity.monster.EntityMob.func_70636_d(EntityMob.java:45)                                                 */
/*     net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2170)                                        */
/*     net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:295)                                                 */
/*     net.minecraft.entity.monster.EntityMob.func_70071_h_(EntityMob.java:50)                                                */
/*     net.minecraft.entity.monster.EntityCreeper.func_70071_h_(EntityCreeper.java:172)                                       */
/*     org.spongepowered.common.event.tracking.TrackingUtil.tickEntity(TrackingUtil.java:160)                                 */
/*     net.minecraft.world.WorldServer.redirect$onCallEntityUpdate$zlo000(WorldServer.java:2986)                              */
/*     net.minecraft.world.World.func_72866_a(World.java:4154)                                                                */
/*     net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:832)                                                     */
/*     net.minecraft.world.World.func_72870_g(World.java:1952)                                                                */
/*     net.minecraft.world.World.func_72939_s(World.java:6596)                                                                */
/*     net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:2300)                                                    */
/*     net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)                                            */
/*     net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:396)                                  */
/*     net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)                                            */
/*     net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)                                                     */
/*     java.lang.Thread.run(Unknown Source)                                                                                   */
/*  Phases Remaining:                                                                                                         */
/*                                                                                                                            */
/* Minecraft : 1.12.2                                                                                                         */
/* SpongeAPI : 7.1.0-SNAPSHOT-7105dfc                                                                                         */
/* SpongeForge : 1.12.2-2705-7.1.0-BETA-3361                                                                                  */
/* Minecraft Forge : 14.23.4.2705                                                                                             */
/******************************************************************************************************************************/

This stacktrace contains the most important version numbers, as well some information about the phase the server was in. In this case a NullPointerException has been thrown during EntityTickPhase. At this point it’s important to check which plugins are involved with the crash. This requires some research as you have to match the package names with mod names; checking the Caused by blocks may also help.

  • java classes can be ignored during the error search.

  • net.minecraft is the vanilla Minecraft code. If only these elements are present, it’s either a Minecraft bug or a coremod.

  • org.spongepowered is from Sponge itself, having only these and Minecraft packages present usually indicates a Sponge bug (or another coremod being present).

  • Other classes have to be mapped to their mods by hand. In this case there is this entry com.example.extendedaiplugin; Java projects are usually named following this format groupId.groupId.artifactId. The group is usually a domain backwards; in this case example.com, followed by the name of the project also known as artifact, for more information on package naming in Java you can refer to its official docs. This plugin is probably called extendedaiplugin, when in doubt, searching the web for the full package name can help.

Предупреждение

Be careful when coremods are present. It can mean that, although a Minecraft class was reported as the cause, it does not mean the code executed is necessarily part of the Minecraft source, and could have been added by a third party. You can check your logs for loaded coremods and potentially find the culprit by removing them one by one. Be warned the issue may only occur when certain coremods are loaded at the same time.