---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 7/23/17 7:16 PM
Description: Updating screen events

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:58)
	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 ox$1.a(SourceFile:61)
	at ox$1.b(SourceFile:58)
	at rf.c(SourceFile:10)
	at ox.a(SourceFile:152)
	at bhz.a(SourceFile:2209)
	at bog.a(SourceFile:212)
	at bli.a(SourceFile:334)
	at bog.a(SourceFile:352)
	at bli.k(SourceFile:397)
	at bli.q(SourceFile:374)
	at bhz.t(SourceFile:1625)
	at bhz.az(SourceFile:1000)
	at bhz.a(SourceFile:419)
	at net.minecraft.client.main.Main.main(SourceFile:123)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
	at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:157)
	at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:149)
	at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:127)
	at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:36)
	at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84)
	... 20 more
Caused by: java.io.IOException: Unable to establish loopback connection
	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)
	at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
	at java.nio.channels.Pipe.open(Pipe.java:155)
	at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)
	at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
	at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:155)
	... 24 more
Caused by: java.net.SocketException: Permission denied: connect
	at sun.nio.ch.Net.connect0(Native Method)
	at sun.nio.ch.Net.connect(Net.java:457)
	at sun.nio.ch.Net.connect(Net.java:449)
	at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:647)
	at java.nio.channels.SocketChannel.open(SocketChannel.java:189)
	at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:130)
	at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
	... 32 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:58)
	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 ox$1.a(SourceFile:61)
	at ox$1.b(SourceFile:58)
	at rf.c(SourceFile:10)
	at ox.a(SourceFile:152)
	at bhz.a(SourceFile:2209)
	at bog.a(SourceFile:212)
	at bli.a(SourceFile:334)
	at bog.a(SourceFile:352)
	at bli.k(SourceFile:397)
	at bli.q(SourceFile:374)

-- Affected screen --
Details:
	Screen name: blg
Stacktrace:
	at bhz.t(SourceFile:1625)
	at bhz.az(SourceFile:1000)
	at bhz.a(SourceFile:419)
	at net.minecraft.client.main.Main.main(SourceFile:123)

-- System Details --
Details:
	Minecraft Version: 1.12
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 136042120 bytes (129 MB) / 272592896 bytes (259 MB) up to 2134114304 bytes (2035 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 1.12
	LWJGL: 2.9.4
	OpenGL: Intel(R) HD Graphics 520 GL version 4.4.0 - Build 20.19.15.4444, Intel
	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: 
	Current Language: 繁體中文 (台灣)
	Profiler Position: N/A (disabled)
	CPU: 4x Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz