1
Game crashes upon loading singleplayer and multiplayer
_BioDragon_
Ive had this problem since 2017, I gave up and switched to console now want to go back to PC Minecraft. As the title says, every time I load/create a singleplayer world, it shows this weird animation then crashes. For multiplayer, i get "java.lang.IllegalStateException: failed to create a child event loop", it just crashes. Ive looked online for a whole day and tried everything. Even turning off my firewall to see if that was the problem. I also updated java, didnt help. Crash report is below, thanks in advance :)
---- Minecraft Crash Report ----
// There are four lights!
Time: 6/9/19 4:44 PM
Description: mouseClicked event handler
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:59)
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 vx.f(SourceFile:55)
at vx$$Lambda$2333/1921324291.get(Unknown Source)
at zp.a(SourceFile:16)
at vx.a(SourceFile:136)
at cvk.a(SourceFile:1640)
at ddc$a.e(SourceFile:380)
at ddc$a.a(SourceFile:311)
at ddc$a.mouseClicked(SourceFile:257)
at cwm.mouseClicked(SourceFile:322)
at cxl.mouseClicked(SourceFile:27)
at cvl.b(SourceFile:86)
at cvl$$Lambda$1772/495471129.run(Unknown Source)
at czt.wrapScreenError(SourceFile:441)
at cvl.a(SourceFile:86)
at cvl$$Lambda$1483/1772262616.invoke(Unknown Source)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3050)
at cud.l(SourceFile:425)
at cud.c(SourceFile:283)
at cvk.b(SourceFile:1023)
at cvk.e(SourceFile:976)
at cvk.b(SourceFile:411)
at net.minecraft.client.main.Main.main(SourceFile:154)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:177)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:151)
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)
... 30 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:175)
... 34 more
Caused by: java.net.ConnectException: Connection timed out: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:458)
at sun.nio.ch.Net.connect(Net.java:450)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
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)
... 42 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:59)
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 vx.f(SourceFile:55)
at vx$$Lambda$2333/1921324291.get(Unknown Source)
at zp.a(SourceFile:16)
at vx.a(SourceFile:136)
at cvk.a(SourceFile:1640)
at ddc$a.e(SourceFile:380)
at ddc$a.a(SourceFile:311)
at ddc$a.mouseClicked(SourceFile:257)
at cwm.mouseClicked(SourceFile:322)
at cxl.mouseClicked(SourceFile:27)
at cvl.b(SourceFile:86)
at cvl$$Lambda$1772/495471129.run(Unknown Source)
-- Affected screen --
Details:
Screen name: ddb
Stacktrace:
at czt.wrapScreenError(SourceFile:441)
at cvl.a(SourceFile:86)
at cvl$$Lambda$1483/1772262616.invoke(Unknown Source)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3050)
at cud.l(SourceFile:425)
at cud.c(SourceFile:283)
at cvk.b(SourceFile:1023)
at cvk.e(SourceFile:976)
at cvk.b(SourceFile:411)
at net.minecraft.client.main.Main.main(SourceFile:154)
-- System Details --
Details:
Minecraft Version: 1.14.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1239788120 bytes (1182 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 1.14.2
LWJGL: 3.2.1 build 12
OpenGL: Intel(R) HD Graphics 3000 GL version 3.1.0 - Build 8.15.10.2626, 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)
CPU: 4x Intel(R) Core(TM) i3-2370M CPU @ 2.40GHz
---- Minecraft Crash Report ----
// There are four lights!
Time: 6/9/19 4:44 PM
Description: mouseClicked event handler
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:59)
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 vx.f(SourceFile:55)
at vx$$Lambda$2333/1921324291.get(Unknown Source)
at zp.a(SourceFile:16)
at vx.a(SourceFile:136)
at cvk.a(SourceFile:1640)
at ddc$a.e(SourceFile:380)
at ddc$a.a(SourceFile:311)
at ddc$a.mouseClicked(SourceFile:257)
at cwm.mouseClicked(SourceFile:322)
at cxl.mouseClicked(SourceFile:27)
at cvl.b(SourceFile:86)
at cvl$$Lambda$1772/495471129.run(Unknown Source)
at czt.wrapScreenError(SourceFile:441)
at cvl.a(SourceFile:86)
at cvl$$Lambda$1483/1772262616.invoke(Unknown Source)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3050)
at cud.l(SourceFile:425)
at cud.c(SourceFile:283)
at cvk.b(SourceFile:1023)
at cvk.e(SourceFile:976)
at cvk.b(SourceFile:411)
at net.minecraft.client.main.Main.main(SourceFile:154)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:177)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:151)
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)
... 30 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:175)
... 34 more
Caused by: java.net.ConnectException: Connection timed out: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:458)
at sun.nio.ch.Net.connect(Net.java:450)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
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)
... 42 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:59)
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 vx.f(SourceFile:55)
at vx$$Lambda$2333/1921324291.get(Unknown Source)
at zp.a(SourceFile:16)
at vx.a(SourceFile:136)
at cvk.a(SourceFile:1640)
at ddc$a.e(SourceFile:380)
at ddc$a.a(SourceFile:311)
at ddc$a.mouseClicked(SourceFile:257)
at cwm.mouseClicked(SourceFile:322)
at cxl.mouseClicked(SourceFile:27)
at cvl.b(SourceFile:86)
at cvl$$Lambda$1772/495471129.run(Unknown Source)
-- Affected screen --
Details:
Screen name: ddb
Stacktrace:
at czt.wrapScreenError(SourceFile:441)
at cvl.a(SourceFile:86)
at cvl$$Lambda$1483/1772262616.invoke(Unknown Source)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3050)
at cud.l(SourceFile:425)
at cud.c(SourceFile:283)
at cvk.b(SourceFile:1023)
at cvk.e(SourceFile:976)
at cvk.b(SourceFile:411)
at net.minecraft.client.main.Main.main(SourceFile:154)
-- System Details --
Details:
Minecraft Version: 1.14.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1239788120 bytes (1182 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 1.14.2
LWJGL: 3.2.1 build 12
OpenGL: Intel(R) HD Graphics 3000 GL version 3.1.0 - Build 8.15.10.2626, 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)
CPU: 4x Intel(R) Core(TM) i3-2370M CPU @ 2.40GHz
3
After a quick google search of the error, it seems like the consensus among players is that this is an anti-virus conflict. Do you happen to have Avast, Outpost, or McAfee installed on your PC? If so, try uninstalling them temporarily and seeing if Minecraft works then. Before you do that though, try adding -Djava.net.preferIPv4Stack=true to your JVM arguments in your profile's launch options and see if that changes anything.
to me it seems to be the java arguments
in the launcher click "launch options" then "add new" then "save"
go to the initial page of the launcher and click the arrow by the launch button and make sure the new profile is selected
if it works its likely the arguments so make a copy of the current arguments (or dont as the report shows them anyway) and try pasting this:
xmx can be changed to 1536 and xmx can be changed to 768 if it doesnt work the first time
other than that im not sure what to do except what leafbirb said (though if you try deleting the .minecraft folder make sure you make a backup of it)
in the launcher click "launch options" then "add new" then "save"
go to the initial page of the launcher and click the arrow by the launch button and make sure the new profile is selected
if it works its likely the arguments so make a copy of the current arguments (or dont as the report shows them anyway) and try pasting this:
-Xmx3072M -Xms1536M -Xmn512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy in the JVM arguments section (make sure its set to allow custom arguments) xmx can be changed to 1536 and xmx can be changed to 768 if it doesnt work the first time
other than that im not sure what to do except what leafbirb said (though if you try deleting the .minecraft folder make sure you make a backup of it)
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