[07:27:45] [main/FATAL]: Failed to start the minecraft server java.lang.IllegalStateException: failed to create a child event loop at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:61) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52) ~[minecraft_server.13w42a.jar:?] at mr.<init>(SourceFile:36) ~[minecraft_server.13w42a.jar:?] at net.minecraft.server.MinecraftServer.<init>(SourceFile:114) ~[minecraft_server.13w42a.jar:?] at li.<init>(SourceFile:50) ~[minecraft_server.13w42a.jar:?] at net.minecraft.server.MinecraftServer.main(SourceFile:591) [minecraft_server.13w42a.jar:?] Caused by: io.netty.channel.ChannelException: failed to open a new selector at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87) ~[minecraft_server.13w42a.jar:?] at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:57) ~[minecraft_server.13w42a.jar:?] ... 7 more Caused by: java.io.IOException: Unable to establish loopback connection at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source) ~[?:1.7.0_40] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_40] at sun.nio.ch.PipeImpl.<init>(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source) ~[?:1.7.0_40] at java.nio.channels.Pipe.open(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source) ~[?:1.7.0_40] at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87) ~[minecraft_server.13w42a.jar:?] at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:57) ~[minecraft_server.13w42a.jar:?] ... 7 more Caused by: java.net.SocketException: Invalid argument: connect at sun.nio.ch.Net.connect0(Native Method) ~[?:1.7.0_40] at sun.nio.ch.Net.connect(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.Net.connect(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.SocketChannelImpl.connect(Unknown Source) ~[?:1.7.0_40] at java.nio.channels.SocketChannel.open(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source) ~[?:1.7.0_40] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_40] at sun.nio.ch.PipeImpl.<init>(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source) ~[?:1.7.0_40] at java.nio.channels.Pipe.open(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source) ~[?:1.7.0_40] at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source) ~[?:1.7.0_40] at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120) ~[minecraft_server.13w42a.jar:?] at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87) ~[minecraft_server.13w42a.jar:?] at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:57) ~[minecraft_server.13w42a.jar:?] ... 7 more