The server crashed while I was loading this mod.

[SkyIce0229]

This is the log information before the crash： [Server] WARNING: An illegal reflective access operation has occurred [Server] WARNING: Illegal reflective access by net.minecraftforge.fml.common.ObfuscationReflectionHelper (modjar://forge) to method java.util.BitSet.trimToSize() [Server] WARNING: Please consider reporting this to the maintainers of net.minecraftforge.fml.common.ObfuscationReflectionHelper [Server] WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations [Server] WARNING: All illegal access operations will be denied in a future release [Server] [21:49:55] [main/INFO] [minecraft/Bootstrap]: Vanilla bootstrap took 3581 milliseconds [Server] [21:49:55] [main/WARN] [mixin/]: @ModifyConstant conflict. Skipping packetfixer-common.mixins.json:FriendlyByteBufMixin->@ModifyConstant::newSize(J)J with priority 1000, already redirected by randompatches.mixins.json:packetsizelimits.PacketBufferMixin->@ModifyConstant::getMaxNBTCompoundTagPacketSize(J)J with priority 1000 [Server] Exception in thread "main" [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:49) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:46) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at net.minecraftforge.server.ServerMain.main(ServerMain.java:43) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: Caused by: java.lang.reflect.InvocationTargetException [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/java.lang.reflect.Method.invoke(Method.java:566) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at net.minecraftforge.fml.loading.FMLServerLaunchProvider.lambda$launchService$0(FMLServerLaunchProvider.java:37) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: ... 7 more [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:250) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at org.spongepowered.asm.service.modlauncher.MixinTransformationHandler.processClass(MixinTransformationHandler.java:131) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at org.spongepowered.asm.launch.MixinLaunchPluginLegacy.processClass(MixinLaunchPluginLegacy.java:131) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClassWithFlags(ILaunchPluginService.java:154) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:85) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:265) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:136) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at net.minecraftforge.fml.network.NetworkInitialization.getHandshakeChannel(NetworkInitialization.java:27) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at net.minecraftforge.fml.network.FMLNetworkConstants.<clinit>(FMLNetworkConstants.java:35) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at net.minecraftforge.fml.ModLoader.<init>(ModLoader.java:115) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at net.minecraftforge.fml.ModLoader.get(ModLoader.java:140) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at net.minecraftforge.fml.server.ServerModLoader.load(ServerModLoader.java:30) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: at net.minecraft.server.Main.main(Main.java:95) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: ... 13 more [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: Caused by: org.spongepowered.asm.mixin.injection.throwables.InjectionError: Critical injection failure: Constant modifier method newSize(J)J in packetfixer-common.mixins.json:FriendlyByteBufMixin failed injection check, (0/1) succeeded. Scanned 1 target(s). Using refmap packetfixer-common-common-refmap.json [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.postInject(InjectionInfo.java:468) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.transformer.MixinTargetContext.applyInjections(MixinTargetContext.java:1362) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyInjections(MixinApplicatorStandard.java:1051) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyMixin(MixinApplicatorStandard.java:400) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:325) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:383) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:365) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363) [Server] [21:49:55] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:671]: ... 29 more

[SkyIce0229]

This is the mod version：packetfixer-forge-1.4.1-1.16.5

[TonimatasDEV]

packetfixer-forge-1.4.1-1.16.5

Can you send the mod list/modpack?

[SkyIce0229]

Sure, I use E6E server modPack, but if you need a list of mods I can send it to you.There is also the mod that I deleted the emoji inside, I hope it will not affect your error. manifest.json modpack-download.zip

[TonimatasDEV]

Fixed in 1.4.2