---- Minecraft Network Protocol Error Report ---- // All lines are down! Time: 2024-10-02 13:03:58 Description: Packet handling error io.netty.handler.codec.EncoderException: Failed to encode packet 'serverbound/minecraft:custom_payload' (minecraft:register) at net.minecraft.class_9136.handler$zhk000$encode(class_9136.java:547) at net.minecraft.class_9136.method_56426(class_9136.java:55) at net.minecraft.class_9136.encode(class_9136.java:14) at net.minecraft.class_2545.method_10838(class_2545.java:26) at net.minecraft.class_2545.encode(class_2545.java:12) at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:881) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) at io.netty.channel.ChannelOutboundHandlerAdapter.write(ChannelOutboundHandlerAdapter.java:113) at net.minecraft.class_2535$2.write(class_2535.java:530) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:881) at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:940) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:966) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:934) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:984) at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1025) at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:306) at net.minecraft.class_2535.method_36942(class_2535.java:350) at net.minecraft.class_2535.method_52917(class_2535.java:345) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) at io.netty.channel.DefaultEventLoop.run(DefaultEventLoop.java:54) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) Caused by: java.lang.ClassCastException: class net.fabricmc.fabric.impl.networking.RegistrationPayload cannot be cast to class net.minecraft.class_8711 (net.fabricmc.fabric.impl.networking.RegistrationPayload and net.minecraft.class_8711 are in unnamed module of loader net.fabricmc.loader.impl.launch.knot.KnotClassLoader @6591f517) at net.minecraft.class_9139$6.encode(class_9139.java:42) at net.minecraft.class_8710$1.method_56489(class_8710.java:52) at net.minecraft.class_8710$1.method_56490(class_8710.java:57) at net.minecraft.class_8710$1.encode(class_8710.java:39) at net.minecraft.class_9139$8.encode(class_9139.java:81) at net.minecraft.class_9139$9.method_56442(class_9139.java:97) at net.minecraft.class_9139$9.encode(class_9139.java:87) at net.minecraft.class_9136.method_56426(class_9136.java:53) ... 24 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Netty Local Client IO #0 Stacktrace: at net.minecraft.class_2547.method_55622(class_2547.java:33) -- Connection -- Details: Protocol: play Flow: CLIENTBOUND Server type: Server brand: fabric Stacktrace: at net.minecraft.class_2547.method_55622(class_2547.java:33) at net.minecraft.class_2600.method_59803(class_2600.java:62) at net.minecraft.class_8673.method_60882(class_8673.java:136) at net.minecraft.class_8673.method_60881(class_8673.java:127) at net.minecraft.class_2535.exceptionCaught(class_2535.java:161) at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346) at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325) at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:317) at io.netty.channel.DefaultChannelPipeline$HeadContext.exceptionCaught(DefaultChannelPipeline.java:1377) at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346) at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325) at io.netty.channel.DefaultChannelPipeline.fireExceptionCaught(DefaultChannelPipeline.java:907) at io.netty.channel.ChannelFutureListener$3.operationComplete(ChannelFutureListener.java:69) at io.netty.channel.ChannelFutureListener$3.operationComplete(ChannelFutureListener.java:65) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:590) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:557) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:492) at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:185) at io.netty.channel.DefaultChannelPromise.addListener(DefaultChannelPromise.java:95) at io.netty.channel.DefaultChannelPromise.addListener(DefaultChannelPromise.java:30) at net.minecraft.class_2535.method_36942(class_2535.java:364) at net.minecraft.class_2535.method_52917(class_2535.java:345) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) at io.netty.channel.DefaultEventLoop.run(DefaultEventLoop.java:54) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) -- System Details -- Details: Minecraft Version: 1.21 Minecraft Version ID: 1.21 Operating System: Windows 11 (amd64) version 10.0 Java Version: 21.0.3, Microsoft Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft Memory: 522698592 bytes (498 MiB) / 939524096 bytes (896 MiB) up to 4294967296 bytes (4096 MiB) CPUs: 16 Processor Vendor: GenuineIntel Processor Name: 13th Gen Intel(R) Core(TM) i5-13400F Identifier: Intel64 Family 6 Model 191 Stepping 2 Microarchitecture: unknown Frequency (GHz): 2.50 Number of physical packages: 1 Number of physical CPUs: 10 Number of logical CPUs: 16 Graphics card #0 name: NVIDIA GeForce RTX 4060 Graphics card #0 vendor: NVIDIA Graphics card #0 VRAM (MiB): 8188.00 Graphics card #0 deviceId: VideoController1 Graphics card #0 versionInfo: 31.0.15.5222 Memory slot #0 capacity (MiB): 16384.00 Memory slot #0 clockSpeed (GHz): 3.20 Memory slot #0 type: DDR4 Memory slot #1 capacity (MiB): 16384.00 Memory slot #1 clockSpeed (GHz): 3.20 Memory slot #1 type: DDR4 Virtual memory max (MiB): 37445.27 Virtual memory used (MiB): 14103.04 Swap memory total (MiB): 4864.00 Swap memory used (MiB): 0.00 Space in storage for jna.tmpdir (MiB): available: 518631.69, total: 952852.00 Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 518631.69, total: 952852.00 Space in storage for io.netty.native.workdir (MiB): available: 518631.69, total: 952852.00 Space in storage for java.io.tmpdir (MiB): available: 518631.69, total: 952852.00 Space in storage for workdir (MiB): available: 518631.69, total: 952852.00 JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M