Hallo, ich komme seit der 1.17.1 nicht mehr in meine Minecraft-Welt rein. Immer nachdem sie zu 100% geladen ist und _*Welt wird gespeichert*_ erscheint, stürzt Minecraft ab und ich bekomme diese Fehlermeldung:  _The game crashed whilst mouseclicked event handler_
_Error: java.lang.IllegalStateException: failed to create a child event loop_
_Exit-Code: -1 ._ Ich weiß nicht mehr, was ich machen soll, könnte mir jemand helfen?

Der ganze Bericht ist unten, Gruß Paul

 

---- Minecraft Crash Report ----
// Oops.

Time: 22.08.21, 15:11
Description: mouseClicked event handler

java.lang.IllegalStateException: failed to create a child event loop
 at io.netty.util.concurrent.MultithreadEventExecutorGroup.null <init>(null)(MultithreadEventExecutorGroup.java:88)
 at io.netty.util.concurrent.MultithreadEventExecutorGroup.null <init>(null)(MultithreadEventExecutorGroup.java:58)
 at io.netty.util.concurrent.MultithreadEventExecutorGroup.null <init>(null)(MultithreadEventExecutorGroup.java:47)
 at io.netty.channel.MultithreadEventLoopGroup.null <init>(null)(MultithreadEventLoopGroup.java:59)
 at io.netty.channel.nio.NioEventLoopGroup.null <init>(null)(NioEventLoopGroup.java:77)
 at io.netty.channel.nio.NioEventLoopGroup.null <init>(null)(NioEventLoopGroup.java:72)
 at io.netty.channel.nio.NioEventLoopGroup.null <init>(null)(NioEventLoopGroup.java:59)
 at net.minecraft.server.network.ServerConnectionListener.io.netty.channel.nio.NioEventLoopGroup lambda$static$0()(ServerConnectionListener.java:56)
 at com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.null get(null)(Suppliers.java:160)
 at net.minecraft.util.LazyLoadedValue.java.lang.Object get()(LazyLoadedValue.java:19)
 at net.minecraft.server.network.ServerConnectionListener.java.net.SocketAddress startMemoryChannel()(ServerConnectionListener.java:148)
 at net.minecraft.client.Minecraft.void doLoadLevel(java.lang.String,net.minecraft.core.RegistryAccess$RegistryHolder,java.util.function.Function,com.mojang.datafixers.util.Function4,boolean,net.minecraft.client.Minecraft$ExperimentalDialogType)(Minecraft.java:2083)
 at net.minecraft.client.Minecraft.void loadLevel(java.lang.String)(Minecraft.java:1939)
 at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.void loadWorld()(WorldSelectionList.java:437)
 at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.void joinWorld()(WorldSelectionList.java:343)
 at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.boolean mouseClicked(double,double,int)(WorldSelectionList.java:279)
 at net.minecraft.client.gui.components.AbstractSelectionList.boolean mouseClicked(double,double,int)(AbstractSelectionList.java:359)
 at net.minecraft.client.gui.components.events.ContainerEventHandler.boolean mouseClicked(double,double,int)(ContainerEventHandler.java:27)
 at net.minecraft.client.gui.components.events.ContainerEventHandler.void setFocused(net.minecraft.client.gui.components.events.GuiEventListener)(ContainerEventHandler.java:27)
 at net.minecraft.client.MouseHandler.void lambda$onPress$0(boolean[],net.minecraft.client.gui.screens.Screen,double,double,int)(MouseHandler.java:94)
 at net.minecraft.client.gui.screens.Screen.void wrapScreenError(java.lang.Runnable,java.lang.String,java.lang.String)(Screen.java:490)
 at net.minecraft.client.MouseHandler.void onPress(long,int,int,int)(MouseHandler.java:94)
 at net.minecraft.client.MouseHandler.void lambda$setup$4(long,int,int,int)(MouseHandler.java:165)
 at net.minecraft.util.thread.BlockableEventLoop.void execute(java.lang.Runnable)(BlockableEventLoop.java:101)
 at net.minecraft.client.MouseHandler.void lambda$setup$5(long,int,int,int)(MouseHandler.java:165)
 at org.lwjgl.glfw.GLFWMouseButtonCallbackI.null callback(null)(GLFWMouseButtonCallbackI.java:36)
 at org.lwjgl.system.JNI.null invokeV(null)(JNI.java)
 at org.lwjgl.glfw.GLFW.null glfwPollEvents(null)(GLFW.java:3101)
 at com.mojang.blaze3d.systems.RenderSystem.void flipFrame(long)(RenderSystem.java:165)
 at com.mojang.blaze3d.platform.Window.void updateDisplay()(Window.java:310)
 at net.minecraft.client.Minecraft.void runTick(boolean)(Minecraft.java:1137)
 at net.minecraft.client.Minecraft.void run()(Minecraft.java:728)
 at net.minecraft.client.main.Main.void main(java.lang.String[])(Main.java:217)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
 at io.netty.channel.nio.NioEventLoop.null openSelector(null)(NioEventLoop.java:177)
 at io.netty.channel.nio.NioEventLoop.null <init>(null)(NioEventLoop.java:151)
 at io.netty.channel.nio.NioEventLoopGroup.null newChild(null)(NioEventLoopGroup.java:127)
 at io.netty.channel.nio.NioEventLoopGroup.null newChild(null)(NioEventLoopGroup.java:36)
 at io.netty.util.concurrent.MultithreadEventExecutorGroup.null <init>(null)(MultithreadEventExecutorGroup.java:84)
 ... 31 more
Caused by: java.io.IOException: Unable to establish loopback connection
 at java.base/sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
 at java.base/sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:67)
 at java.base/java.security.AccessController.doPrivileged(AccessController.java:554)
 at java.base/sun.nio.ch.PipeImpl.<init>(PipeImpl.java:194)
 at java.base/sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:143)
 at java.base/sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
 at io.netty.channel.nio.NioEventLoop.null openSelector(null)(NioEventLoop.java:175)
 ... 35 more
Caused by: java.net.SocketException: Permission denied: connect
 at java.base/sun.nio.ch.Net.connect0(Native Method)
 at java.base/sun.nio.ch.Net.connect(Net.java:576)
 at java.base/sun.nio.ch.Net.connect(Net.java:583)
 at java.base/sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:851)
 at java.base/java.nio.channels.SocketChannel.open(SocketChannel.java:285)
 at java.base/sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:131)
 at java.base/sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
 ... 41 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
 at io.netty.util.concurrent.MultithreadEventExecutorGroup.null <init>(null)(MultithreadEventExecutorGroup.java:88)
 at io.netty.util.concurrent.MultithreadEventExecutorGroup.null <init>(null)(MultithreadEventExecutorGroup.java:58)
 at io.netty.util.concurrent.MultithreadEventExecutorGroup.null <init>(null)(MultithreadEventExecutorGroup.java:47)
 at io.netty.channel.MultithreadEventLoopGroup.null <init>(null)(MultithreadEventLoopGroup.java:59)
 at io.netty.channel.nio.NioEventLoopGroup.null <init>(null)(NioEventLoopGroup.java:77)
 at io.netty.channel.nio.NioEventLoopGroup.null <init>(null)(NioEventLoopGroup.java:72)
 at io.netty.channel.nio.NioEventLoopGroup.null <init>(null)(NioEventLoopGroup.java:59)
 at net.minecraft.server.network.ServerConnectionListener.io.netty.channel.nio.NioEventLoopGroup lambda$static$0()(ServerConnectionListener.java:56)
 at com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.null get(null)(Suppliers.java:160)
 at net.minecraft.util.LazyLoadedValue.java.lang.Object get()(LazyLoadedValue.java:19)
 at net.minecraft.server.network.ServerConnectionListener.java.net.SocketAddress startMemoryChannel()(ServerConnectionListener.java:148)
 at net.minecraft.client.Minecraft.void doLoadLevel(java.lang.String,net.minecraft.core.RegistryAccess$RegistryHolder,java.util.function.Function,com.mojang.datafixers.util.Function4,boolean,net.minecraft.client.Minecraft$ExperimentalDialogType)(Minecraft.java:2083)
 at net.minecraft.client.Minecraft.void loadLevel(java.lang.String)(Minecraft.java:1939)
 at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.void loadWorld()(WorldSelectionList.java:437)
 at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.void joinWorld()(WorldSelectionList.java:343)
 at net.minecraft.client.gui.screens.worldselection.WorldSelectionList$WorldListEntry.boolean mouseClicked(double,double,int)(WorldSelectionList.java:279)
 at net.minecraft.client.gui.components.AbstractSelectionList.boolean mouseClicked(double,double,int)(AbstractSelectionList.java:359)
 at net.minecraft.client.gui.components.events.ContainerEventHandler.boolean mouseClicked(double,double,int)(ContainerEventHandler.java:27)
 at net.minecraft.client.gui.components.events.ContainerEventHandler.void setFocused(net.minecraft.client.gui.components.events.GuiEventListener)(ContainerEventHandler.java:27)
 at net.minecraft.client.MouseHandler.void lambda$onPress$0(boolean[],net.minecraft.client.gui.screens.Screen,double,double,int)(MouseHandler.java:94)

-- Affected screen --
Details:
 Screen name: net.minecraft.client.gui.screens.worldselection.SelectWorldScreen
Stacktrace:
 at net.minecraft.client.gui.screens.Screen.void wrapScreenError(java.lang.Runnable,java.lang.String,java.lang.String)(Screen.java:490)
 at net.minecraft.client.MouseHandler.void onPress(long,int,int,int)(MouseHandler.java:94)
 at net.minecraft.client.MouseHandler.void lambda$setup$4(long,int,int,int)(MouseHandler.java:165)
 at net.minecraft.util.thread.BlockableEventLoop.void execute(java.lang.Runnable)(BlockableEventLoop.java:101)
 at net.minecraft.client.MouseHandler.void lambda$setup$5(long,int,int,int)(MouseHandler.java:165)
 at org.lwjgl.glfw.GLFWMouseButtonCallbackI.null callback(null)(GLFWMouseButtonCallbackI.java:36)
 at org.lwjgl.system.JNI.null invokeV(null)(JNI.java)
 at org.lwjgl.glfw.GLFW.null glfwPollEvents(null)(GLFW.java:3101)
 at com.mojang.blaze3d.systems.RenderSystem.void flipFrame(long)(RenderSystem.java:165)

-- Last reload --
Details:
 Reload number: 1
 Reload reason: initial
 Finished: Yes
 Packs: Default
Stacktrace:
 at net.minecraft.client.ResourceLoadStateTracker.void fillCrashReport(net.minecraft.CrashReport)(ResourceLoadStateTracker.java:49)
 at net.minecraft.client.Minecraft.net.minecraft.CrashReport fillReport(net.minecraft.CrashReport)(Minecraft.java:2406)
 at net.minecraft.client.Minecraft.void run()(Minecraft.java:747)
 at net.minecraft.client.main.Main.void main(java.lang.String[])(Main.java:217)

-- System Details --
Details:
 Minecraft Version: 1.17.1
 Minecraft Version ID: 1.17.1
 Operating System: Windows 7 (amd64) version 6.1
 Java Version: 16.0.1, Microsoft
 Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
 Memory: 630741640 bytes (601 MiB) / 2147483648 bytes (2048 MiB) up to 2147483648 bytes (2048 MiB)
 CPUs: 4
 Processor Vendor: GenuineIntel
 Processor Name: Intel(R) Core(TM)2 Quad CPU Q6700 @ 2.66GHz
 Identifier: Intel64 Family 6 Model 15 Stepping 11
 Microarchitecture: Core (Client)
 Frequency (GHz): 2,66
 Number of physical packages: 1
 Number of physical CPUs: 4
 Number of logical CPUs: 4
 Graphics card #0 name: NVIDIA Quadro K2000
 Graphics card #0 vendor: NVIDIA (0x10de)
 Graphics card #0 VRAM (MB): 2048,00
 Graphics card #0 deviceId: 0x0ffe
 Graphics card #0 versionInfo: DriverVersion=26.21.14.4166
 Memory slot #0 capacity (MB): 1024,00
 Memory slot #0 clockSpeed (GHz): 0,00
 Memory slot #0 type: Unknown
 Memory slot #1 capacity (MB): 1024,00
 Memory slot #1 clockSpeed (GHz): 0,00
 Memory slot #1 type: Unknown
 Memory slot #2 capacity (MB): 1024,00
 Memory slot #2 clockSpeed (GHz): 0,00
 Memory slot #2 type: Unknown
 Memory slot #3 capacity (MB): 1024,00
 Memory slot #3 clockSpeed (GHz): 0,00
 Memory slot #3 type: Unknown
 Virtual memory max (MB): 16379,12
 Virtual memory used (MB): 6218,98
 Swap memory total (MB): 8188,63
 Swap memory used (MB): 249,34
 JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
 Launched Version: 1.17.1
 Backend library: LWJGL version 3.2.2 build 10
 Backend API: Quadro K2000/PCIe/SSE2 GL version 3.2.0 NVIDIA 441.66, NVIDIA Corporation
 Window size: 1920x1080
 GL Caps: Using framebuffer using OpenGL 3.2
 GL debug messages: 
 Using VBOs: Yes
 Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.
 Type: Integrated Server (map_client.txt)
 Graphics mode: fancy
 Resource Packs: vanilla
 Current Language: Deutsch (Deutschland)
 CPU: 4x Intel(R) Core(TM)2 Quad CPU Q6700 @ 2.66GHz
 Player Count: 0 / 8; []
 Data Packs: vanilla