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NeoForge 1.21.1 Crash Report

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Software: NeoForge Version: 1.21.1 (228)

Detected

Minecraft version: 1.21.1 Java version: 21.0.10 NeoForge version: 21.1.228

---- Minecraft Crash Report ----

// Ouch. That hurt :(

Time: 2026-04-28 20:02:01

Description: Mod loading failures have occurred; consult the issue messages for more details

net.neoforged.neoforge.logging.CrashReportExtender$ModLoadingCrashException: Mod loading has failed

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

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

-- Head --

Thread: main

Stacktrace:

at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.register(EventBus.java:135) ~[bus-8.0.5.jar%2362!/:?] {}

-- Mod loading issue for: inside_the_system --

Details:

Caused by 0: java.lang.RuntimeException: java.lang.IllegalArgumentException: class net.mcreator.insidethesystem.procedures.SiteOpenProcedure has no @SubscribeEvent methods, but register was called anyway.

The event bus only recognizes listener methods that have the @SubscribeEvent annotation.

at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.javafmlmod.AutomaticEventSubscriber.lambda$inject$4(AutomaticEventSubscriber.java:112) ~[loader-4.0.42.jar%2359!/:4.0] {}

at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) ~[?:?] {}

at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.javafmlmod.AutomaticEventSubscriber.inject(AutomaticEventSubscriber.java:49) ~[loader-4.0.42.jar%2359!/:4.0] {}

at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:126) ~[loader-4.0.42.jar%2359!/:4.0] {}

at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.ModLoader.lambda$constructMods$3(ModLoader.java:153) ~[loader-4.0.42.jar%2359!/:4.0] {}

at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$7(ModLoader.java:231) ~[loader-4.0.42.jar%2359!/:4.0] {}

at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) ~[?:?] {}

at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:911) ~[?:?] {}

at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) ~[?:?] {}

at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387) ~[?:?] {}

at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312) ~[?:?] {}

at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843) ~[?:?] {}

at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808) ~[?:?] {}

at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188) ~[?:?] {}

Mod file: /server/mods/ITS (1.21.1) 1.2.jar

Failure message: Inside the system (inside_the_system) has failed to load correctly

java.lang.RuntimeException: java.lang.IllegalArgumentException: class net.mcreator.insidethesystem.procedures.SiteOpenProcedure has no @SubscribeEvent methods, but register was called anyway.

The event bus only recognizes listener methods that have the @SubscribeEvent annotation.

Mod version: 1.2.0

Mod issues URL: <No issues URL found>

Exception message: java.lang.IllegalArgumentException: class net.mcreator.insidethesystem.procedures.SiteOpenProcedure has no @SubscribeEvent methods, but register was called anyway.

The event bus only recognizes listener methods that have the @SubscribeEvent annotation.

Stacktrace:

at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.register(EventBus.java:135) ~[bus-8.0.5.jar%2362!/:?] {}

at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.javafmlmod.AutomaticEventSubscriber.lambda$inject$4(AutomaticEventSubscriber.java:86) ~[loader-4.0.42.jar%2359!/:4.0] {}