Put the summary of the bug you're having here
What I expected to happen was...:
expected game to launch, instead I get a bug report.
What actually happened was...:
clicked paly offline, selected world, clicked launch
Steps to Reproduce:
1.play offline
2. selected world
3. launch
Related issues
Comments


Is this what you need? :
[12:55:33 INFO]: Minecraft Launcher 1.6.48 (through bootstrap 100) started on windows...
[12:55:33 INFO]: Current time is Dec 1, 2015 12:55:33 PM
[12:55:33 INFO]: System.getProperty('os.name') == 'Windows 8.1'
[12:55:33 INFO]: System.getProperty('os.version') == '6.3'
[12:55:33 INFO]: System.getProperty('os.arch') == 'amd64'
[12:55:33 INFO]: System.getProperty('java.version') == '1.8.0_25'
[12:55:33 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[12:55:33 INFO]: System.getProperty('sun.arch.data.model') == '64'
[12:55:33 INFO]: proxy == DIRECT
[12:55:33 INFO]: JFX is already initialized
[12:55:34 INFO]: Refreshing local version list...
[12:55:34 INFO]: Refreshing remote version list...
[12:55:34 ERROR]: Unexpected exception refreshing version list
java.net.SocketException: Unrecognized Windows Sockets error: 10106: create
at java.net.Socket.createImpl(Socket.java:460) ~[?:1.8.0_25]
at java.net.Socket.connect(Socket.java:587) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:649) ~[?:1.8.0_25]
at sun.net.NetworkClient.doConnect(NetworkClient.java:175) ~[?:1.8.0_25]
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) ~[?:1.8.0_25]
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1146) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) ~[?:1.8.0_25]
at com.mojang.launcher.Http.performGet(Http.java:54) ~[launcher.jar:1.6.48]
at net.minecraft.launcher.updater.RemoteVersionList.getContent(RemoteVersionList.java:27) ~[launcher.jar:1.6.48]
at net.minecraft.launcher.updater.VersionList.refreshVersions(VersionList.java:85) ~[launcher.jar:1.6.48]
at net.minecraft.launcher.updater.MinecraftVersionManager.refreshVersions(MinecraftVersionManager.java:60) ~[launcher.jar:1.6.48]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:133) [launcher.jar:1.6.48]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[12:55:34 INFO]: Loaded 3 profile(s); selected 'KittensNMittens'
[12:55:34 INFO]: Refreshing auth...
[12:55:34 INFO]: Logging in with access token
[12:55:34 ERROR]: Exception whilst logging into profile
com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:71) ~[launcher.jar:1.6.48]
at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logInWithToken(YggdrasilUserAuthentication.java:132) ~[launcher.jar:1.6.48]
at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logIn(YggdrasilUserAuthentication.java:55) ~[launcher.jar:1.6.48]
at net.minecraft.launcher.Launcher.ensureLoggedIn(Launcher.java:215) [launcher.jar:1.6.48]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:169) [launcher.jar:1.6.48]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: java.net.SocketException: Unrecognized Windows Sockets error: 10106: create
at java.net.Socket.createImpl(Socket.java:460) ~[?:1.8.0_25]
at java.net.Socket.connect(Socket.java:587) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:649) ~[?:1.8.0_25]
at sun.net.NetworkClient.doConnect(NetworkClient.java:175) ~[?:1.8.0_25]
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) ~[?:1.8.0_25]
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1146) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1281) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1256) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250) ~[?:1.8.0_25]
at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:73) ~[launcher.jar:1.6.48]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[launcher.jar:1.6.48]
... 9 more

wait , , maybe this :
Minecraft Crash Report ----
// I feel sad now 😞
Time: 12/1/15 12:48 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$1.b(SourceFile:41)
at no.c(SourceFile:10)
at ll.a(SourceFile:121)
at ave.a(SourceFile:1942)
at axv.i(SourceFile:172)
at axv.a(SourceFile:135)
at axu.a(SourceFile:350)
at axu.k(SourceFile:413)
at axv.k(SourceFile:81)
at axu.p(SourceFile:390)
at ave.s(SourceFile:1498)
at ave.av(SourceFile:889)
at ave.a(SourceFile:325)
at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)
... 18 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)
at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
at java.nio.channels.Pipe.open(Pipe.java:155)
at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)
at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
... 21 more
Caused by: java.net.SocketException: Unrecognized Windows Sockets error: 10106: socket
at sun.nio.ch.Net.socket0(Native Method)
at sun.nio.ch.Net.serverSocket(Net.java:419)
at sun.nio.ch.ServerSocketChannelImpl.<init>(ServerSocketChannelImpl.java:88)
at sun.nio.ch.SelectorProviderImpl.openServerSocketChannel(SelectorProviderImpl.java:56)
at java.nio.channels.ServerSocketChannel.open(ServerSocketChannel.java:108)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:123)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
... 29 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:1942)
at axv.i(SourceFile:172)
at axv.a(SourceFile:135)
at axu.a(SourceFile:350)
at axu.k(SourceFile:413)
at axv.k(SourceFile:81)
at axu.p(SourceFile:390)
– Affected screen –
Details:
Screen name: aya
Stacktrace:
at ave.s(SourceFile:1498)
at ave.av(SourceFile:889)
at ave.a(SourceFile:325)
at net.minecraft.client.main.Main.main(SourceFile:124)
– System Details –
Details:
Minecraft Version: 1.8.8
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 38692496 bytes (36 MB) / 227446784 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: 11, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 1.8.8
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics 4400 GL version 4.3.0 - Build 10.18.14.4264, 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: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz

Caused by your firewall / antivirus software and dupe of MC-34749
Incomplete without a crash report (
[minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt
). Please attach it so that we can diagnose your issue.For technical support please use the Mojang Support Center.
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