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Forge server won't start when I add mods


Qetnuh

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Hi, I'm trying to make a modded Forge server so me and my friends can play together, but when I add the mods to the mods folder, I get an error. If I have the server by itself, no mods, everything runs fine. I don't know what is happening so if someone could please help that would be great. I left the crash report below.

Spoiler

C:\Users\Hunter\Desktop\Forge>REM Forge requires a configured set of both JVM and program arguments.

C:\Users\Hunter\Desktop\Forge>REM Add custom JVM arguments to the user_jvm_args.txt

C:\Users\Hunter\Desktop\Forge>REM Add custom program arguments {such as nogui} to this file in the next line before the  or

C:\Users\Hunter\Desktop\Forge>REM  pass them to this script directly

C:\Users\Hunter\Desktop\Forge>java @user_jvm_args.txt @libraries/net/minecraftforge/forge/1.18.2-40.2.1/win_args.txt
2023-02-07 19:07:23,904 main WARN Advanced terminal features are not available in this environment
[19:07:24] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.forgeVersion, 40.2.1, --fml.mcVersion, 1.18.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20220404.173914]
[19:07:24] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 9.1.3+9.1.3+main.9b69c82a starting: java version 19.0.2 by Oracle Corporation
[19:07:24] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/C:/Users/Hunter/Desktop/Forge/libraries/org/spongepowered/mixin/0.8.5/mixin-0.8.5.jar%2314!/ Service=ModLauncher Env=SERVER
[19:07:24] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Hunter\Desktop\Forge\libraries\net\minecraftforge\fmlcore\1.18.2-40.2.1\fmlcore-1.18.2-40.2.1.jar is missing mods.toml file
[19:07:24] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Hunter\Desktop\Forge\libraries\net\minecraftforge\javafmllanguage\1.18.2-40.2.1\javafmllanguage-1.18.2-40.2.1.jar is missing mods.toml file
[19:07:24] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Hunter\Desktop\Forge\libraries\net\minecraftforge\lowcodelanguage\1.18.2-40.2.1\lowcodelanguage-1.18.2-40.2.1.jar is missing mods.toml file
[19:07:24] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Hunter\Desktop\Forge\libraries\net\minecraftforge\mclanguage\1.18.2-40.2.1\mclanguage-1.18.2-40.2.1.jar is missing mods.toml file
[19:07:24] [main/INFO] [ne.mi.fm.lo.mo.JarInJarDependencyLocator/]: Found 24 dependencies adding them to mods collection[19:07:25] [main/INFO] [mixin/]: Compatibility level set to JAVA_17
[19:07:25] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments []
[19:07:26] [main/WARN] [mixin/]: Reference map 'eureka-forge-refmap.json' for vs_eureka.mixins.json could not be read. If this is a development environment you can ignore this message
[19:07:26] [main/WARN] [mixin/]: Error loading class: dev/ftb/mods/ftbchunks/data/ClaimedChunkManager (java.lang.ClassNotFoundException: dev.ftb.mods.ftbchunks.data.ClaimedChunkManager)
[19:07:26] [main/WARN] [mixin/]: Error loading class: dan200/computercraft/shared/peripheral/speaker/SpeakerPosition (java.lang.ClassNotFoundException: dan200.computercraft.shared.peripheral.speaker.SpeakerPosition)
[19:07:26] [main/WARN] [mixin/]: Error loading class: dan200/computercraft/shared/turtle/core/TurtleBrain (java.lang.ClassNotFoundException: dan200.computercraft.shared.turtle.core.TurtleBrain)
[19:07:26] [main/WARN] [mixin/]: Error loading class: dan200/computercraft/shared/turtle/core/TurtleMoveCommand (java.lang.ClassNotFoundException: dan200.computercraft.shared.turtle.core.TurtleMoveCommand)
[19:07:26] [main/WARN] [mixin/]: Error loading class: dan200/computercraft/shared/peripheral/modem/wireless/WirelessNetwork (java.lang.ClassNotFoundException: dan200.computercraft.shared.peripheral.modem.wireless.WirelessNetwork)
[19:07:26] [main/WARN] [mixin/]: Error loading class: blusunrize/immersiveengineering/common/gui/BlockEntityInventory (java.lang.ClassNotFoundException: blusunrize.immersiveengineering.common.gui.BlockEntityInventory)
[19:07:26] [main/WARN] [mixin/]: Error loading class: cofh/core/block/entity/TileCoFH (java.lang.ClassNotFoundException: cofh.core.block.entity.TileCoFH)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[19:07:26] [main/WARN] [mixin/]: Error loading class: java/util/concurrent/CompletableFuture (java.lang.IllegalArgumentException: Unsupported class file major version 63)
Exception in thread "main" org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:392)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:250)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.service.modlauncher.MixinTransformationHandler.processClass(MixinTransformationHandler.java:131)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.launch.MixinLaunchPluginLegacy.processClass(MixinLaunchPluginLegacy.java:131)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClassWithFlags(ILaunchPluginService.java:156)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50)
        at [email protected]/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:110)
        at [email protected]/cpw.mods.cl.ModuleClassLoader.lambda$findClass$16(ModuleClassLoader.java:216)        at [email protected]/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:226)
        at [email protected]/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:216)
        at [email protected]/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:132)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
        at java.base/java.lang.Class.getDeclaredMethods0(Native Method)
        at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3458)
        at java.base/java.lang.Class.getMethodsRecursive(Class.java:3599)
        at java.base/java.lang.Class.getMethod0(Class.java:3585)
        at java.base/java.lang.Class.getMethod(Class.java:2275)
        at MC-BOOTSTRAP/[email protected]/net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:32)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.Launcher.run(Launcher.java:106)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.Launcher.main(Launcher.java:77)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26)
        at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23)
        at [email protected]/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149)
Caused by: org.spongepowered.asm.mixin.throwables.ClassMetadataNotFoundException: java.util.concurrent.CompletableFuture        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transformMethod(MixinPreProcessorStandard.java:754)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.transform(MixinPreProcessorStandard.java:739)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.attach(MixinPreProcessorStandard.java:310)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinPreProcessorStandard.createContextFor(MixinPreProcessorStandard.java:280)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinInfo.createContextFor(MixinInfo.java:1288)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:292)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:383)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:365)
        at MC-BOOTSTRAP/org.spongepowered.mixin/org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:363)
        ... 27 more

 

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23 minutes ago, Hipposgrumm said:

The mods you are using use Mixin.

You are using Java 19. Java 19 breaks Mixin somehow.

You must downgrade to Java 17.

Ok, I tried this but now when I open run.bat, inside the cmd it just says Forge>pause, but no errors. I tried redownloading Java 19 and it gave me the errors then, so I dunno what's happening with that. Do you have any other solutions?qbtyIRf.png

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