Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,

    Java does not handle IPv6 nameservers before 1.8.0_60. Upgrade to the latest JVM.

Solutions on the web

via GitHub by boistordu
, 1 year ago
An exception occurred processing Appender ServerGuiConsole
via GitHub by nsoft
, 1 year ago
An exception occurred processing Appender CASSANDRA
org.apache.logging.log4j.core.appender.AppenderLoggingException: An exception occurred processing Appender ServerGuiConsole at org.apache.logging.log4j.core.appender.DefaultErrorHandler.error(DefaultErrorHandler.java:73) at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:101) at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:425) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:406) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:367) at org.apache.logging.log4j.core.Logger.log(Logger.java:110) at org.apache.logging.log4j.spi.AbstractLogger.log(AbstractLogger.java:1362) at mods.railcraft.common.util.misc.Game.log(Game.java:80) at mods.railcraft.common.util.misc.Game.log(Game.java:76) at mods.railcraft.common.util.misc.Game.logThrowable(Game.java:115) at mods.railcraft.common.util.misc.Game.logErrorAPI(Game.java:129) at mods.railcraft.common.plugins.forestry.ForestryPlugin$ForestryPluginInstalled.addCarpenterRecipe(ForestryPlugin.java:294) at mods.railcraft.common.modules.ModuleForestry$1.postInit(ModuleForestry.java:52) at mods.railcraft.common.modules.RailcraftModulePayload$BaseModuleEventHandler.postInit(RailcraftModulePayload.java:82) at mods.railcraft.common.modules.RailcraftModuleManager$Stage$4.passToModule(RailcraftModuleManager.java:278) at mods.railcraft.common.modules.RailcraftModuleManager.processStage(RailcraftModuleManager.java:223) at mods.railcraft.common.modules.RailcraftModuleManager.postInit(RailcraftModuleManager.java:210) at mods.railcraft.common.core.Railcraft.postInit(Railcraft.java:191) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:597) at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) at com.google.common.eventbus.EventBus.post(EventBus.java:275) at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:239) at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:217) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) at com.google.common.eventbus.EventBus.post(EventBus.java:275) at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:142) at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:795) at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:107) at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:333) at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:214) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431) at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.IllegalArgumentException: can't parse argument number: concrete at java.text.MessageFormat.makeFormat(MessageFormat.java:1429) at java.text.MessageFormat.applyPattern(MessageFormat.java:479) at java.text.MessageFormat.<init>(MessageFormat.java:362) at java.text.MessageFormat.format(MessageFormat.java:840) at org.apache.logging.log4j.message.MessageFormatMessage.formatMessage(MessageFormatMessage.java:89) at org.apache.logging.log4j.message.MessageFormatMessage.getFormattedMessage(MessageFormatMessage.java:61) at org.apache.logging.log4j.core.pattern.MessagePatternConverter.format(MessagePatternConverter.java:68) at org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:36) at org.apache.logging.log4j.core.pattern.RegexReplacementConverter.format(RegexReplacementConverter.java:93) at org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:36) at org.apache.logging.log4j.core.layout.PatternLayout.toSerializable(PatternLayout.java:167) at org.apache.logging.log4j.core.layout.PatternLayout.toSerializable(PatternLayout.java:52) at com.mojang.util.QueueLogAppender.append(QueueLogAppender.java:39) at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:99) ... 47 moreCaused by: java.lang.NumberFormatException: For input string: "concrete" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.lang.Integer.parseInt(Integer.java:615) at java.text.MessageFormat.makeFormat(MessageFormat.java:1427) ... 60 more