Initially, I got horribly stuck with the installer failing to load the library files, but I found my fire-wall was blocking them, so sorted that and got the installer working fine. I installed Forge on a brand new 1.7.10 install, which had been run once to check all was well and a map briefly created.

 

I then installed Forge, and ran the game again through the installer, choosing a new profile which picked up Forge correctly. The game starts up just fine, and I get the front screen indicating 3 mods in place. MCP 9.05, FML 7.10.18.1180 and Forge 10.13.0.1180. Nothing else.

 

The MODS folder is empty.

 

 

 

---- Minecraft Crash Report ----

// Daisy, daisy...

 

Time: 09/08/14 20:17

Description: Starting integrated server

 

java.lang.ExceptionInInitializerError

at net.minecraft.server.MinecraftServer.<init>(MinecraftServer.java:146)

at net.minecraft.server.integrated.IntegratedServer.<init>(IntegratedServer.java:45)

at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2079)

at cpw.mods.fml.client.FMLClientHandler.tryLoadExistingWorld(FMLClientHandler.java:669)

at net.minecraft.client.gui.GuiSelectWorld.func_146615_e(GuiSelectWorld.java:183)

at net.minecraft.client.gui.GuiSelectWorld.func_146284_a(GuiSelectWorld.java:130)

at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:225)

at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:296)

at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268)

at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1628)

at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:961)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)

at net.minecraft.client.main.Main.main(SourceFile:148)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Caused by: java.lang.IllegalStateException: failed to create a child event loop

at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:61)

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 net.minecraft.network.NetworkSystem.<clinit>(NetworkSystem.java:47)

... 19 more

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:57)

... 23 more

Caused by: java.io.IOException: Unable to establish loopback connection

at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)

at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at sun.nio.ch.PipeImpl.<init>(Unknown Source)

at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)

at java.nio.channels.Pipe.open(Unknown Source)

at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source)

at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)

at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)

... 26 more

Caused by: java.net.SocketException: Permission denied: listen

at sun.nio.ch.Net.listen(Native Method)

at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)

at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)

at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)

... 35 more

 

 

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

 

-- Head --

Stacktrace:

at net.minecraft.server.MinecraftServer.<init>(MinecraftServer.java:146)

at net.minecraft.server.integrated.IntegratedServer.<init>(IntegratedServer.java:45)

 

-- Starting integrated server --

Details:

Level ID: New World------

Level Name: New World

Stacktrace:

at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2079)

at cpw.mods.fml.client.FMLClientHandler.tryLoadExistingWorld(FMLClientHandler.java:669)

at net.minecraft.client.gui.GuiSelectWorld.func_146615_e(GuiSelectWorld.java:183)

at net.minecraft.client.gui.GuiSelectWorld.func_146284_a(GuiSelectWorld.java:130)

at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:225)

at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:296)

at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268)

 

-- Affected screen --

Details:

Screen name: net.minecraft.client.gui.GuiMainMenu

Stacktrace:

at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1628)

at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:961)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)

at net.minecraft.client.main.Main.main(SourceFile:148)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

 

-- System Details --

Details:

Minecraft Version: 1.7.10

Operating System: Windows 7 (amd64) version 6.1

Java Version: 1.7.0_60, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 154662664 bytes (147 MB) / 246001664 bytes (234 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

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v9.05 FML v7.10.18.1180 Minecraft Forge 10.13.0.1180 3 mods loaded, 3 mods active

mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

FML{7.10.18.1180} [Forge Mod Loader] (forge-1.7.10-10.13.0.1180.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Forge{10.13.0.1180} [Minecraft Forge] (forge-1.7.10-10.13.0.1180.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Launched Version: 1.7.10-Forge10.13.0.1180

LWJGL: 2.9.1

OpenGL: GeForce GTX 660/PCIe/SSE2 GL version 4.3.0, NVIDIA Corporation

GL Caps: Using GL 1.3 multitexturing.

Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.

Anisotropic filtering is supported and maximum anisotropy is 16.

Shaders are available because OpenGL 2.1 is supported.

 

Is Modded: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Packs: []

Current Language: English (US)

Profiler Position: N/A (disabled)

Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Anisotropic Filtering: Off (1)

 

 

 

I have tried running with the firewall on and off. I have tried creating or opening a map, and creating a map in vanilla 1.7.10 still crashes when opening in Forge.

 

I have searched for similar issues, but in all cases the root cause seemed to be a mod issue.... but I have no mods in place. I have double checked this by deleting the whole install and reloading the game files.

 

 

Update, and it seems like your firewall is at it again not letting Minecraft create the sockets it needs to to connect to itself.

Also try running with -Djava.net.preferIPv4Stack=true in your JVM arguments. This shouldn't be needed on modern Forge versions but whatever.

Tried it with Firewall on and off ... but it wouldn't work, even when I set it to 'allow all'. I suspect I would have to disable it entirely, which I am reluctant to do as it is also my antivirus. It's the free version of Outpost Security Suite 7.1 for reference. I may have to find myself a different firewall altogether. Odd that it lets me run vanilla both SP and LAN/online....

 

Added the statement you suggested to the JVM arguments in the loader however, and it works!

 

"-Djava.net.preferIPv4Stack=true"

 

and the game is running with forge enabled. I have added in a couple of Forge compatable mods to test, and it's all running perfectly. I won't pretend to know exactly what the statement does, but it works.

 

Many thanks LexManos!

Hello. Sorry, but where exactly do I add the javaargument in my version.json

 

for example, here is the first part of my version.json file

 

{

    "minecraftArguments": "--username ${auth_player_name} --session ${auth_session} --version ${version_name} --gameDir ${game_directory} --assetsDir ${game_assets} --tweakClass cpw.mods.fml.common.launcher.FMLTweaker",

    "libraries": [

        {

            "url": "http://files.minecraftforge.net/maven/",

            "name": "net.minecraftforge:minecraftforge:9.11.1.965"

 

 

 

 

I see "minecraftarguments" but nothing about javaarguments.  So all I would like to know is how to add the argument mentioned above to my version.json file, thanks

You dont edit json files.

You add these options in the profile config in the launcher.

Well, I'm a but late, but after I replaced whatever argument was in my profile with your recommended text, it worked! My Forge kept doing the same thing ever since loading a mod that was in its alpha stages but up for downloads, and this actually fixed it. Thanks fam.

I need help. I am having the same problem, but I don't know much about FILES on a computer. The fix looks like it works, but I still cant figure out where to edit/replace the argument, because I don't know where it is. Thanks.