---- Minecraft Crash Report ---- // Who set us up the TNT? Time: 7/23/18 5:41 AM Description: mouseClicked event handler java.lang.IllegalStateException: failed to create a child event loop  at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:88)  at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58)  at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47)  at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)  at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:77)  at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72)  at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:59)  at ua.f(SourceFile:55)  at ua$$Lambda$1447/662267010.get(Unknown Source)  at xm.a(SourceFile:16)  at ua.a(SourceFile:136)  at cfi.a(SourceFile:1486)  at cmr.i(SourceFile:294)  at cmr.e(SourceFile:223)  at cmr.mouseClicked(SourceFile:169)  at cgv.a(SourceFile:21)  at cha.mouseClicked(SourceFile:278)  at chf.mouseClicked(SourceFile:46)  at cfk.b(SourceFile:83)  at cfk$$Lambda$925/727209127.run(Unknown Source)  at cjs.a(SourceFile:430)  at cfk.a(SourceFile:83)  at cfk$$Lambda$775/1985468683.invoke(Unknown Source)  at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)  at org.lwjgl.system.JNI.invokeV(Native Method)  at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3029)  at cfs.a(SourceFile:308)  at cfi.c(SourceFile:872)  at cfi.a(SourceFile:392)  at net.minecraft.client.main.Main.main(SourceFile:144) Caused by: io.netty.channel.ChannelException: failed to open a new selector  at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:177)  at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:151)  at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:127)  at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:36)  at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84)  ... 29 more Caused by: java.io.IOException: Unable to establish loopback connection  at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)  at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)  at java.security.AccessController.doPrivileged(Native Method)  at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)  at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)  at java.nio.channels.Pipe.open(Pipe.java:155)  at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)  at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)  at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:175)  ... 33 more Caused by: java.net.SocketException: Permission denied: connect  at sun.nio.ch.Net.connect0(Native Method)  at sun.nio.ch.Net.connect(Net.java:458)  at sun.nio.ch.Net.connect(Net.java:450)  at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)  at java.nio.channels.SocketChannel.open(SocketChannel.java:189)  at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:130)  at 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: Client thread Stacktrace:  at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:88)  at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58)  at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47)  at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)  at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:77)  at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72)  at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:59)  at ua.f(SourceFile:55)  at ua$$Lambda$1447/662267010.get(Unknown Source)  at xm.a(SourceFile:16)  at ua.a(SourceFile:136)  at cfi.a(SourceFile:1486)  at cmr.i(SourceFile:294)  at cmr.e(SourceFile:223)  at cmr.mouseClicked(SourceFile:169)  at cgv.a(SourceFile:21)  at cha.mouseClicked(SourceFile:278)  at chf.mouseClicked(SourceFile:46)  at cfk.b(SourceFile:83)  at cfk$$Lambda$925/727209127.run(Unknown Source) -- Affected screen -- Details:  Screen name: cmq Stacktrace:  at cjs.a(SourceFile:430)  at cfk.a(SourceFile:83)  at cfk$$Lambda$775/1985468683.invoke(Unknown Source)  at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)  at org.lwjgl.system.JNI.invokeV(Native Method)  at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3029)  at cfs.a(SourceFile:308)  at cfi.c(SourceFile:872)  at cfi.a(SourceFile:392)  at net.minecraft.client.main.Main.main(SourceFile:144) -- System Details -- Details:  Minecraft Version: 1.13  Operating System: Windows 10 (amd64) version 10.0  Java Version: 1.8.0_51, Oracle Corporation  Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation  Memory: 391925024 bytes (373 MB) / 754974720 bytes (720 MB) up to 1073741824 bytes (1024 MB)  JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M  Launched Version: 1.13  LWJGL: 3.1.6 build 14  OpenGL: GeForce GTX 1050/PCIe/SSE2 GL version 4.6.0 NVIDIA 398.36, NVIDIA Corporation  GL Caps: Using GL 1.3 multitexturing. Using GL 1.3 texture combiners. Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported. Shaders are available because OpenGL 2.1 is supported. VBOs are available because OpenGL 1.5 is supported. Using VBOs: Yes  Is Modded: Probably not. Jar signature remains and client brand is untouched.  Type: Client (map_client.txt)  Resource Packs:  Current Language: English (Canada)  Profiler Position: N/A (disabled)  CPU: 4x Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz