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My tutorial mod is crashing...


kmccmk9

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Hello, I am an experienced plugin developer for bukkit and spout. However, when going through the tutorial for basic adding of a crafting recipe. The mod now crashes my game on launch. Below is the error and my code. The error is pointing to line 35 of the Generic class which is just then ItemStack commandBlock. I'm not sure what is wrong with it. Thanks for any help!

Error:

---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 7/30/13 4:07 PM
Description: There was a severe problem during mod loading that has caused the game to fail

cpw.mods.fml.common.LoaderException: java.lang.NoSuchFieldError: commandBlock
at cpw.mods.fml.common.LoadController.transition(LoadController.java:149)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:698)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:232)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:506)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)
at net.minecraft.client.main.Main.main(SourceFile:101)
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:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)
Caused by: java.lang.NoSuchFieldError: commandBlock
at tutorial.generic.Generic.load(Generic.java:35)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
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 com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:105)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:697)
... 10 more


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

-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 50955944 bytes (48 MB) / 115183616 bytes (109 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v8.04 FML v6.2.35.804 Minecraft Forge 9.10.0.804 18 mods loaded, 18 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
FML{6.2.35.804} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
Forge{9.10.0.804} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
BetterSprinting{v10} [better Sprinting Coremod] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
CodeChickenCore{0.9.0.0} [CodeChicken Core] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
NotEnoughItems{1.6.0.4} [Not Enough Items] (NotEnoughItems 1.6.0.4.jar) Unloaded->Constructed->Pre-initialized->Initialized
mod_bspkrsCore{v3.03(1.6.2)} [bspkrsCore] ([1.6.2]bspkrsCorev3.03.zip) Unloaded->Constructed->Pre-initialized->Initialized
DamageIndicatorsMod{2.8.5.1} [Damage Indicators] (1.6.2 DamageIndicators v2.8.5.1.zip) Unloaded->Constructed->Pre-initialized->Initialized
mod_ReiMinimap{v3.4_01 [1.6.2]} [mod_ReiMinimap] ([1.6.2]ReiMinimap_v3.4_01.zip) Unloaded->Constructed->Pre-initialized->Initialized
TreeCapitator{Forge 1.6.2.r01} [TreeCapitator] ([1.6.2]TreeCapitator.Forge.1.6.2.r01.Uni.CoreMod.jar) Unloaded->Constructed->Pre-initialized->Initialized
Backpack{1.12.13} [backpack] (backpack-1.12.13-1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
buddycam{1.6.2 a} [buddyCam] (buddycam-1.6.2_a.zip) Unloaded->Constructed->Pre-initialized->Initialized
ComputerCraft{1.55} [ComputerCraft] (ComputerCraft1.55.zip) Unloaded->Constructed->Pre-initialized->Initialized
CCTurtle{1.55} [ComputerCraft Turtles] (ComputerCraft1.55.zip) Unloaded->Constructed->Pre-initialized->Initialized
RopesPlus{1.4.3} [Ropes+] (RopePlus_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
row{1.6.2-13.07.30-0} [Rails of War] (RoW-162-130730-0.zip) Unloaded->Constructed->Pre-initialized->Initialized
Generic{0.0.0} [Generic] (Tutorial.jar) Unloaded->Constructed->Pre-initialized->Errored
AS_UpdateCheck{1.1.0} [AtomicStryker Update Check Mod] (UpdateCheckerMod_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized

 

Code:

package tutorial.generic;

import net.minecraft.block.Block;
import net.minecraft.item.ItemStack;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.Mod.Instance;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.network.NetworkMod;
import cpw.mods.fml.common.registry.GameRegistry;

@Mod(modid="Generic", name="Generic", version="0.0.0")
@NetworkMod(clientSideRequired=true, serverSideRequired=false)
public class Generic {

        // The instance of your mod that Forge uses.
        @Instance("Generic")
        public static Generic instance;
        
        // Says where the client and server 'proxy' code is loaded.
        @SidedProxy(clientSide="tutorial.generic.client.ClientProxy", serverSide="tutorial.generic.CommonProxy")
        public static CommonProxy proxy;
        
        @EventHandler
        public void preInit(FMLPreInitializationEvent event) {
                // Stub Method
        }
        
        @EventHandler
        public void load(FMLInitializationEvent event) {
                proxy.registerRenderers();
                ItemStack commandStack = new ItemStack(Block.commandBlock);
            	ItemStack redstoneStack = new ItemStack(Block.redstoneWire);
            	ItemStack repeaterStack = new ItemStack(Block.redstoneRepeaterIdle);

            	GameRegistry.addRecipe(commandStack, "xy", "yx", 'x', redstoneStack, 'y', repeaterStack);
        }
        
        @EventHandler
        public void postInit(FMLPostInitializationEvent event) {
                // Stub Method
        }
}

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yay go forge :D, boo bukkit

 

Below is the error and my code.

but you forgot to post it :P

edit

 

can we have logs (i dont know just by looking at it)

 

Ya sorry about that. I program on one computer and test on the other so I had to switch back and forth and edit my posts a few times to that the rror code and java code could be in the post.  ;D

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which IDE are you using ?

the error is

NoSuchFieldError meaning at compile time it find it, but at run time it doesnt, here with forge we have something called obfuscation (something i dont know if bukkit does)

but basicly this mean that we will change the names back to their original when were done coding

 

so net.minecraft.client.Minecraft class becomes "jd"  (or something similar, 2-3 letter), basicly if you're using a special IDE you might be doing things weirdly and it obfuscate the code before you run it, meaning that commandBlock becomes something else

 

eclipse ?

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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which IDE are you using ?

the error is

NoSuchFieldError meaning at compile time it find it, but at run time it doesnt, here with forge we have something called obfuscation (something i dont know if bukkit does)

but basicly this mean that we will change the names back to their original when were done coding

 

so net.minecraft.client.Minecraft class becomes "jd"  (or something similar, 2-3 letter), basicly if you're using a special IDE you might be doing things weirdly and it obfuscate the code before you run it, meaning that commandBlock becomes something else

 

eclipse ?

 

That is what I'm using. However, I should note that I am having to export my jar file as Eclipse can't run the modded minecraft for some strange reason.

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oh i know

yeah basicly you're not following the correct procedure to release a mod

 

ok so once your code is all good (and it works in eclipse)

 

goto mcp/

run recompile.bat (.sh if you're on linux)

run reobfuscate.bat (.sh if you're on linux)

goto mcp/reobf/minecraft/

zip everythign in there (ZIP, not rar, 7z, tar.gz, tar.bz etc)

rename the file to yourmodname.jar

place that jar into .minecraft/mod

run minecraft

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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oh i know

yeah basicly you're not following the correct procedure to release a mod

 

ok so once your code is all good (and it works in eclipse)

 

goto mcp/

run recompile.bat (.sh if you're on linux)

run reobfuscate.bat (.sh if you're on linux)

goto mcp/reobf/minecraft/

zip everythign in there (ZIP, not rar, 7z, tar.gz, tar.bz etc)

rename the file to yourmodname.jar

place that jar into .minecraft/mod

run minecraft

 

Okay so I am in the process of doing what you said. But I have to do this whole thing every time I want to test my mod?

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no in eclispe you can press the green arrow and everything should be fine

 

It isn't though. It won't run the modded minecraft. Otherwise I would have done that like the tutorial said. I have 1.6.2 installed and everything.

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I should note that I am having to export my jar file as Eclipse can't run the modded minecraft for some strange reason.

i misunderstood that for, "im trying to make a release"

 

in your eclipse workspace do you have the net.* package ? (net.minecraft.*)

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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I should note that I am having to export my jar file as Eclipse can't run the modded minecraft for some strange reason.

i misunderstood that for, "im trying to make a release"

 

in your eclipse workspace do you have the net.* package ? (net.minecraft.*)

 

I do. The error I'm getting is actually that of JVM.

 

EDIT: Sometimes it works just fine. When it does work and the wrapped minecraft is loaded, my mod is listed but the crafting recipe does not work.

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I should note that I am having to export my jar file as Eclipse can't run the modded minecraft for some strange reason.

i misunderstood that for, "im trying to make a release"

 

in your eclipse workspace do you have the net.* package ? (net.minecraft.*)

 

Everything seems to work now except the crafting recipe.

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which IDE are you using ?

the error is

NoSuchFieldError meaning at compile time it find it, but at run time it doesnt, here with forge we have something called obfuscation (something i dont know if bukkit does)

but basicly this mean that we will change the names back to their original when were done coding

 

so net.minecraft.client.Minecraft class becomes "jd"  (or something similar, 2-3 letter), basicly if you're using a special IDE you might be doing things weirdly and it obfuscate the code before you run it, meaning that commandBlock becomes something else

 

eclipse ?

 

Okay I did everything you suggested. Recompiled and reobed. But I am still getting this error when using the files exported to the reobf folder.

 

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 7/30/13 9:09 PM
Description: There was a severe problem during mod loading that has caused the game to fail

cpw.mods.fml.common.LoaderException: java.lang.NoSuchFieldError: commandBlock
at cpw.mods.fml.common.LoadController.transition(LoadController.java:149)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:698)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:232)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:506)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)
at net.minecraft.client.main.Main.main(SourceFile:101)
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:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)
Caused by: java.lang.NoSuchFieldError: commandBlock
at tutorial.generic.Generic.load(Generic.java:35)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
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 com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:105)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:697)
... 10 more


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

-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 52324272 bytes (49 MB) / 115990528 bytes (110 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v8.04 FML v6.2.35.804 Minecraft Forge 9.10.0.804 19 mods loaded, 19 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
FML{6.2.35.804} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
Forge{9.10.0.804} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
BetterSprinting{v10} [better Sprinting Coremod] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
CodeChickenCore{0.9.0.0} [CodeChicken Core] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
NotEnoughItems{1.6.0.4} [Not Enough Items] (NotEnoughItems 1.6.0.4.jar) Unloaded->Constructed->Pre-initialized->Initialized
mod_bspkrsCore{v3.03(1.6.2)} [bspkrsCore] ([1.6.2]bspkrsCorev3.03.zip) Unloaded->Constructed->Pre-initialized->Initialized
CommandBlockRecipe{0.0.1} [CommandBlockRecipe] (1.6.2 CommandBlockRecipe.zip) Unloaded->Constructed->Pre-initialized->Initialized
DamageIndicatorsMod{1.0} [Damage Indicators] (1.6.2 DamageIndicators v2.8.5.1.zip) Unloaded->Constructed->Pre-initialized->Initialized
mod_ReiMinimap{v3.4_01 [1.6.2]} [mod_ReiMinimap] ([1.6.2]ReiMinimap_v3.4_01.zip) Unloaded->Constructed->Pre-initialized->Initialized
TreeCapitator{Forge 1.6.2.r01} [TreeCapitator] ([1.6.2]TreeCapitator.Forge.1.6.2.r01.Uni.CoreMod.jar) Unloaded->Constructed->Pre-initialized->Initialized
Backpack{1.12.13} [backpack] (backpack-1.12.13-1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
buddycam{1.6.2 a} [buddyCam] (buddycam-1.6.2_a.zip) Unloaded->Constructed->Pre-initialized->Initialized
ComputerCraft{1.55} [ComputerCraft] (ComputerCraft1.55.zip) Unloaded->Constructed->Pre-initialized->Initialized
CCTurtle{1.55} [ComputerCraft Turtles] (ComputerCraft1.55.zip) Unloaded->Constructed->Pre-initialized->Initialized
RopesPlus{1.4.3} [Ropes+] (RopePlus_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
row{1.6.2-13.07.30-0} [Rails of War] (RoW-162-130730-0.zip) Unloaded->Constructed->Pre-initialized->Initialized
Generic{0.0.0} [Generic] (Tutorial.jar) Unloaded->Constructed->Pre-initialized->Errored
AS_UpdateCheck{1.1.0} [AtomicStryker Update Check Mod] (UpdateCheckerMod_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized

 

My mod does work fully from within eclipse.

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The Add-Opens/Add-Exports attributes are only intended for forcing open other mods.   What else is new with module support? Previously, the runtime module name was always forced to the first mod ID in your `mods.toml` file and all packages were forced fully open and exported. Module names are now distinguished from mod IDs, meaning the module name in your module-info.java can be different from the mod ID in your `mods.toml`. This allows you to have a more descriptive module name that doesn't have to be the same as your mod ID, however we strongly recommend including your mod ID as part of your module name to aid troubleshooting. The `Automatic-Module-Name` manifest attribute is now also honoured, allowing you to specify a module name for your mod without needing to create a `module-info.java` file. This is particularly useful for mods that don't care about JPMS features but want to have a more descriptive module name and easier integration with other mods that do use JPMS.   How do I use it? The first step is to create a `module-info.java` file in your mod's source directory. This file should be in the same package as your main mod class, and should look something like this: open module com.example.examplemod { requires net.minecraftforge.eventbus; requires net.minecraftforge.fmlcore; requires net.minecraftforge.forge; requires net.minecraftforge.javafmlmod; requires net.minecraftforge.mergetool.api; requires org.slf4j; requires logging; } For now, we're leaving the whole module open to reflection, which is a good starting point. When we know we want to close something off, we can remove the open modifier from the module and open or export individual packages instead. Remember that you need to be open to Forge (module name net.minecraftforge.forge), otherwise it can't call your mod's constructor. Next is fixing modules in Gradle. While Forge and Java support modules properly, Gradle does not put automatic modules on the module path by default, meaning that the logging module (from com.mojang:logging) is not found. To fix this, add the Gradle plugin and add a compile-time module definition for that Mojang library: plugins { // (...) id 'org.gradlex.extra-java-module-info' version "1.9" } // (...) extraJavaModuleInfo { failOnMissingModuleInfo = false automaticModule("com.mojang:logging", "logging") } The automatic module override specified in your build.gradle should match the runtime one to avoid errors. You can do the same for any library or mod dependency that is missing either a module-info or explicit Automatic-Module-Name, however be aware that you may need to update your mod once said library adds one. That's all you need to get started with module support in your mods. You can learn more about modules and how to use them at dev.java.
    • Faire la mise à jour grâce à ce lien m'a aider personnellement, merci à @Paint_Ninja. https://www.amd.com/en/support 
    • When I came across the 'Exit Code: I got a 1 error in my Minecraft mods, so I decided to figure out what was wrong. First, I took a look at the logs. In the mods folder (usually where you'd find logs or crash reports), I found the latest.log file or the corresponding crash report. I read it through carefully, looking for any lines with errors or warnings. Then I checked the Minecraft Forge support site, where you can often find info on what causes errors and how to fix them. I then disabled half of my mods and tried running the game. If the error disappeared, it meant that the problem was with the disabled mod. I repeated this several times to find the problem mod.
    • I have no idea - switch to a pre-configured modpack and use it as working base    
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