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  1. Minecraft: Java Edition
  2. MC-82563

Will not launch game stops while creating world

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • Minecraft 1.8.7
    • None
    • OS: Windows 8.1 (ver 6.3, arch amd64)
      Java: 1.8.0_25 (by Oracle Corporation)
      Launcher: Minecraft Launcher 1.6.13 (bootstrap 100)
      Minecraft: 1.8.7 (updated Fri Jun 05 06:10:44 EDT 2015)
    • Unconfirmed

      while creating world game crashes
      What I expected to happen was...:
      world creation should have completed
      What actually happened was...:

      (---- Minecraft Crash Report ----
      // Surprise! Haha. Well, this is awkward.
      
      Time: 7/21/15 8:21 PM
      Description: Updating screen events
      
      java.lang.IllegalStateException: failed to create a child event loop
      	at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:68)
      	at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
      	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61)
      	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52)
      	at ll$1.a(SourceFile:44)
      	at ll$1.b(SourceFile:41)
      	at no.c(SourceFile:10)
      	at ll.a(SourceFile:121)
      	at ave.a(SourceFile:1941)
      	at axb.a(SourceFile:210)
      	at axu.a(SourceFile:350)
      	at axb.a(SourceFile:350)
      	at axu.k(SourceFile:413)
      	at axu.p(SourceFile:390)
      	at ave.s(SourceFile:1497)
      	at ave.av(SourceFile:888)
      	at ave.a(SourceFile:325)
      	at net.minecraft.client.main.Main.main(SourceFile:124)
      Caused by: io.netty.channel.ChannelException: failed to open a new selector
      	at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
      	at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
      	at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
      	at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)
      	... 17 more
      Caused by: java.io.IOException: Unable to establish loopback connection
      	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
      	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
      	at java.security.AccessController.doPrivileged(Native Method)
      	at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)
      	at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
      	at java.nio.channels.Pipe.open(Pipe.java:155)
      	at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)
      	at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
      	at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
      	... 20 more
      Caused by: java.net.SocketException: Unrecognized Windows Sockets error: 10107: socket
      	at sun.nio.ch.Net.socket0(Native Method)
      	at sun.nio.ch.Net.serverSocket(Net.java:419)
      	at sun.nio.ch.ServerSocketChannelImpl.<init>(ServerSocketChannelImpl.java:88)
      	at sun.nio.ch.SelectorProviderImpl.openServerSocketChannel(SelectorProviderImpl.java:56)
      	at java.nio.channels.ServerSocketChannel.open(ServerSocketChannel.java:108)
      	at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:123)
      	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
      	... 28 more
      
      
      A detailed walkthrough of the error, its code path and all known details is as follows:
      ---------------------------------------------------------------------------------------
      
      -- Head --
      Stacktrace:
      	at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:68)
      	at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
      	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61)
      	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52)
      	at ll$1.a(SourceFile:44)
      	at ll$1.b(SourceFile:41)
      	at no.c(SourceFile:10)
      	at ll.a(SourceFile:121)
      	at ave.a(SourceFile:1941)
      	at axb.a(SourceFile:210)
      	at axu.a(SourceFile:350)
      	at axb.a(SourceFile:350)
      	at axu.k(SourceFile:413)
      	at axu.p(SourceFile:390)
      
      -- Affected screen --
      Details:
      	Screen name: aya
      Stacktrace:
      	at ave.s(SourceFile:1497)
      	at ave.av(SourceFile:888)
      	at ave.a(SourceFile:325)
      	at net.minecraft.client.main.Main.main(SourceFile:124)
      
      -- System Details --
      Details:
      	Minecraft Version: 1.8.7
      	Operating System: Windows 8.1 (amd64) version 6.3
      	CPU: 8x AMD FX(tm)-8320 Eight-Core Processor 
      	Java Version: 1.8.0_25, Oracle Corporation
      	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
      	Memory: 153481776 bytes (146 MB) / 338464768 bytes (322 MB) up to 1060372480 bytes (1011 MB)
      	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
      	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 99
      	Launched Version: 1.8.7
      	LWJGL: 2.9.4
      	OpenGL: GeForce GTX 750 Ti/PCIe/SSE2 GL version 4.4.0, 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: No
      	Is Modded: Probably not. Jar signature remains and client brand is untouched.
      	Type: Client (map_client.txt)
      	Resource Packs: [KayneCraft4.2x64.zip]
      	Current Language: English (US)
      	Profiler Position: N/A (disabled))
      

      Steps to Reproduce:
      1. Put a step by step guide on how to trigger the bug here
      2. ...
      3. ...

            Unassigned Unassigned
            Jinga_Din Matthew Cook
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              Created:
              Updated:
              Resolved: