For clarification, I do have fore installed for 1.18.2, java 17 is installed, and all mods were downloaded from curse forge, and all operate on a single player world just fine. When the mods are actually in the mods folder and I attempt to run the server, I'm met with this information

 

C:\Users\Server\Desktop\server 1.18.2>REM Forge requires a configured set of both JVM and program arguments.

C:\Users\Server\Desktop\server 1.18.2>REM Add custom JVM arguments to the user_jvm_args.txt

C:\Users\Server\Desktop\server 1.18.2>REM Add custom program arguments {such as nogui} to this file in the next line before the  or

C:\Users\Server\Desktop\server 1.18.2>REM  pass them to this script directly

C:\Users\Server\Desktop\server 1.18.2>java @user_jvm_args.txt @libraries/net/minecraftforge/forge/1.18.2-40.2.0/win_args.txt
2023-02-08 13:03:16,146 main WARN Advanced terminal features are not available in this environment
[13:03:16] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.forgeVersion, 40.2.0, --fml.mcVersion, 1.18.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20220404.173914]
[13:03:16] [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
[13:03:16] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/C:/Users/Server/Desktop/server%201.18.2/libraries/org/spongepowered/mixin/0.8.5/mixin-0.8.5.jar%2314!/ Service=ModLauncher Env=SERVER
[13:03:17] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Server\Desktop\server 1.18.2\libraries\net\minecraftforge\fmlcore\1.18.2-40.2.0\fmlcore-1.18.2-40.2.0.jar is missing mods.toml file
[13:03:17] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Server\Desktop\server 1.18.2\libraries\net\minecraftforge\javafmllanguage\1.18.2-40.2.0\javafmllanguage-1.18.2-40.2.0.jar is missing mods.toml file
[13:03:17] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Server\Desktop\server 1.18.2\libraries\net\minecraftforge\lowcodelanguage\1.18.2-40.2.0\lowcodelanguage-1.18.2-40.2.0.jar is missing mods.toml file
[13:03:17] [main/WARN] [ne.mi.fm.lo.mo.ModFileParser/LOADING]: Mod file C:\Users\Server\Desktop\server 1.18.2\libraries\net\minecraftforge\mclanguage\1.18.2-40.2.0\mclanguage-1.18.2-40.2.0.jar is missing mods.toml file
[13:03:17] [main/INFO] [ne.mi.fm.lo.mo.JarInJarDependencyLocator/]: Found 4 dependencies adding them to mods collection
[13:03:20] [main/INFO] [mixin/]: Compatibility level set to JAVA_17
[13:03:20] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments []
[13:03:20] [main/WARN] [mixin/]: Reference map 'everycomp.refmap.json' for everycomp.mixins.json could not be read. If this is a development environment you can ignore this message
[13:03:20] [main/WARN] [mixin/]: Reference map 'idas.refmap.json' for idas.mixins.json could not be read. If this is a development environment you can ignore this message
[Serene Seasons Transformer]: Transforming m_47480_ (Lnet/minecraft/world/level/LevelReader;Lnet/minecraft/core/BlockPos;Z)Z in net/minecraft/world/level/biome/Biome
[Serene Seasons Transformer]: Patched 1 calls
[Serene Seasons Transformer]: Transforming m_47519_ (Lnet/minecraft/world/level/LevelReader;Lnet/minecraft/core/BlockPos;)Z in net/minecraft/world/level/biome/Biome
[Serene Seasons Transformer]: Successfully patched shouldSnow
[Serene Seasons Transformer]: Transforming m_8714_ (Lnet/minecraft/world/level/chunk/LevelChunk;I)V in net/minecraft/server/level/ServerLevel
[Serene Seasons Transformer]: Successfully patched tickChunk
[13:03:20] [main/WARN] [mixin/]: Error loading class: net/minecraft/server/level/ServerLevel (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: @Mixin target net.minecraft.server.level.ServerLevel was not found betterdeserttemples.mixins.json:ServerLevelMixin
[Serene Seasons Transformer]: Transforming m_8714_ (Lnet/minecraft/world/level/chunk/LevelChunk;I)V in net/minecraft/server/level/ServerLevel
[Serene Seasons Transformer]: Successfully patched tickChunk
[13:03:21] [main/WARN] [mixin/]: Error loading class: net/minecraft/server/level/ServerLevel (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: @Mixin target net.minecraft.server.level.ServerLevel was not found blueprint.mixins.json:ServerLevelMixin
[Serene Seasons Transformer]: Transforming m_8714_ (Lnet/minecraft/world/level/chunk/LevelChunk;I)V in net/minecraft/server/level/ServerLevel
[Serene Seasons Transformer]: Successfully patched tickChunk
[13:03:21] [main/WARN] [mixin/]: Error loading class: net/minecraft/server/level/ServerLevel (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: @Mixin target net.minecraft.server.level.ServerLevel was not found supplementaries.mixins.json:ServerLevelMixin
[13:03:21] [main/WARN] [mixin/]: Error loading class: dev/latvian/mods/kubejs/recipe/RecipeEventJS (java.lang.ClassNotFoundException: dev.latvian.mods.kubejs.recipe.RecipeEventJS)
[13:03:21] [main/WARN] [mixin/]: @Mixin target dev.latvian.mods.kubejs.recipe.RecipeEventJS was not found sliceanddice.mixins.json:RecipeEventJSMixin
[Serene Seasons Transformer]: Transforming m_8714_ (Lnet/minecraft/world/level/chunk/LevelChunk;I)V in net/minecraft/server/level/ServerLevel
[Serene Seasons Transformer]: Successfully patched tickChunk
[13:03:21] [main/WARN] [mixin/]: Error loading class: net/minecraft/server/level/ServerLevel (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: @Mixin target net.minecraft.server.level.ServerLevel was not found create.mixins.json:accessor.ServerLevelAccessor
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/util/Map$Entry (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [main/WARN] [mixin/]: Error loading class: java/lang/invoke/MethodHandles$Lookup (java.lang.IllegalArgumentException: Unsupported class file major version 63)
[13:03:21] [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

C:\Users\Server\Desktop\server 1.18.2>pause
Press any key to continue . . .

 

With the mods removed, the server runs just fine, grated, I'm unsure how to optimize a modpack, as this is custom, I tried with singular mods, and sometimes works, sometimes doesn't if I have more then one. I'm not a tech guy by any means, so I'm unsure how to read and digest most of this text, any troubeshooting help would be greatly appreciated

Well, you may have Java 17 on your computer, but Java 19 is being used to run this jar. So, you either need to update the PATH environment variable such that it finds the Java 17 jar first or change the `java` to the exact executable in the correct version.

I ran jar.fix and used 17 as the executable, same error occurs

 

If it's the same error, then you are not running Java 17. You can verify this by running `java --version` in the console. If it is the fact you are, put in the new debug.log.