Minecraft Forums

Whenever I try to play on minecraft 1.11.2 to 1.9, it all works fine until I try to make a new world, the world says its loading then ends up crashing. I've tried many different things to get it to work, deleting minecraft, updating graphics cards, and uninstalling mcafee. However, minecraft does work on 1.8 and below. Here is my most recent crash report,

---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 12/29/16 9:20 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 mh$1.a(SourceFile:61)
at mh$1.b(SourceFile:58)
at op.c(SourceFile:10)
at mh.a(SourceFile:152)
at bes.a(SourceFile:2162)
at bkb.e(SourceFile:229)
at bkb.a(SourceFile:182)
at bkb.a(SourceFile:148)
at bfy.b(SourceFile:41)
at bka.a(SourceFile:117)
at bho.k(SourceFile:404)
at bka.k(SourceFile:49)
at bho.p(SourceFile:381)
at bes.t(SourceFile:1586)
at bes.av(SourceFile:970)
at bes.a(SourceFile:398)
at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)
... 20 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)
at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
at java.nio.channels.Pipe.open(Pipe.java:155)
at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)
at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
... 23 more
Caused by: java.net.SocketException: Permission denied: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:457)
at sun.nio.ch.Net.connect(Net.java:449)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:647)
at java.nio.channels.SocketChannel.open(SocketChannel.java:189)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:130)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
... 31 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: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 mh$1.a(SourceFile:61)
at mh$1.b(SourceFile:58)
at op.c(SourceFile:10)
at mh.a(SourceFile:152)
at bes.a(SourceFile:2162)
at bkb.e(SourceFile:229)
at bkb.a(SourceFile:182)
at bkb.a(SourceFile:148)
at bfy.b(SourceFile:41)
at bka.a(SourceFile:117)
at bho.k(SourceFile:404)
at bka.k(SourceFile:49)
at bho.p(SourceFile:381)

-- Affected screen --
Details:
Screen name: bhm
Stacktrace:
at bes.t(SourceFile:1586)
at bes.av(SourceFile:970)
at bes.a(SourceFile:398)
at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
Minecraft Version: 1.11.2
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: 62537488 bytes (59 MB) / 226959360 bytes (216 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: 0, tallocated: 0
Launched Version: 1.11.2
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics 2000 GL version 3.1.0 - Build 9.17.10.4229, 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: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz

Please help me, I have been trying to access this for AGES

@souless_fury: Did you have any other Antivirus programs installed at the same time. Also if you did not use the tool im about to link in order to remove McAfee, do so it likes to leave parts behind. http://us.mcafee.com/apps/supporttools/mcpr/mcpr.asp

@worndownkeys I do have Windows Defender, if that counts. And possibly bytefence anti-malware, and I did use that link to uninstall mcafee when I uninstalled it originally.

Yeah, it looks like something is blocking the net connection. Windows Defender should ask you when you start the game if you want to allow the connection through the firewall, set it to allow for both public and private connections.

You may also want to update Java and tell the launcher to use that version instead of it's outdated built-in version, it might help.

Yeah, it looks like something is blocking the net connection. Windows Defender should ask you when you start the game if you want to allow the connection through the firewall, set it to allow for both public and private connections.

You may also want to update Java and tell the launcher to use that version instead of it's outdated built-in version, it might help. See this:

http://www.ghacks.net/2015/03/11/change-which-version-of-java-minecraft-uses/

@Dweller_Benthos I turned off firewall for a little bit, and attempted to play minecraft on 1.11.2, and it still didn't work. I had already updated Java yesterday, and nothing seemed to work, it had the same reaction as before. But I will try what you said with the link. If it helps, my current Java build is version 8 and update 11. The release date was October 18, 2016.

I read everything on that link you sent to me, but it didn't really do much. It mainly explained a mere contrast between using an old version of java and updating the versions.

Yeah, I don't know, looking on other threads, they all say to uninstall McAfee and use the tool that's linked above to do so. Don't install it again, it causes more problems than if fixes. Windows comes with firewall and anti-virus protections now, there's really no need for third party stuff anymore. This page says essentially the same thing, McAfee is the devil:

https://bugs.mojang.com/browse/MC-34749

You also say you have Bytefence, whatever that is, so get rid of it as well and see if that works. You can also try getting help on the IRC channel here:

http://webchat.esper.net/?channels=minecrafthelp