---- Minecraft Crash Report ---- // Oops. Time: 2026-06-06 20:56:04 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: --------------------------------------------------------------------------------------- -- Mod loading issue -- Details: Mod file: Failure message: File /Users/george/Documents/python/inProgress/minecraft_mods/living_world/build/classes/java/main is not a valid mod file Mod version: Mod issues URL: Exception message: -- System Details -- Details: Minecraft Version: 1.21.1 Minecraft Version ID: 1.21.1 Operating System: Mac OS X (aarch64) version 26.5 Java Version: 21.0.11, Homebrew Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Homebrew Memory: 242263888 bytes (231 MiB) / 532676608 bytes (508 MiB) up to 6442450944 bytes (6144 MiB) CPUs: 12 Processor Vendor: Apple Inc. Processor Name: Apple M4 Pro Identifier: Apple Inc. Family 0x1b588bb3 Model 0 Stepping 0 Microarchitecture: ARM64 SoC: Firestorm + Icestorm Frequency (GHz): 0.00 Number of physical packages: 1 Number of physical CPUs: 12 Number of logical CPUs: 12 Graphics card #0 name: Apple M4 Pro Graphics card #0 vendor: Apple (0x106b) Graphics card #0 VRAM (MiB): 0.00 Graphics card #0 deviceId: unknown Graphics card #0 versionInfo: unknown Memory slot #0 capacity (MiB): 0.00 Memory slot #0 clockSpeed (GHz): 0.00 Memory slot #0 type: unknown Virtual memory max (MiB): 27648.00 Virtual memory used (MiB): 16251.97 Swap memory total (MiB): 3072.00 Swap memory used (MiB): 1770.94 Space in storage for jna.tmpdir (MiB): Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): Space in storage for io.netty.native.workdir (MiB): Space in storage for java.io.tmpdir (MiB): available: 198623.16, total: 471482.09 Space in storage for workdir (MiB): available: 198623.16, total: 471482.09 JVM Flags: 0 total; ModLauncher: 11.0.4+main.d2e20e43 ModLauncher launch target: forgeclientdev ModLauncher services: sponge-mixin-0.15.2+mixin.0.8.7.jar mixin PLUGINSERVICE loader-4.0.39.jar slf4jfixer PLUGINSERVICE loader-4.0.39.jar runtime_enum_extender PLUGINSERVICE at-modlauncher-10.0.1.jar accesstransformer PLUGINSERVICE loader-4.0.39.jar runtimedistcleaner PLUGINSERVICE modlauncher-11.0.4.jar mixin TRANSFORMATIONSERVICE modlauncher-11.0.4.jar fml TRANSFORMATIONSERVICE FML Language Providers: javafml@4.0 lowcodefml@4.0 minecraft@4.0 Mod List: neoforge-21.1.172.jar |Minecraft |minecraft |1.21.1 |Manifest: NOSIGNATURE neoforge-21.1.172.jar |NeoForge |neoforge |21.1.172 |Manifest: NOSIGNATURE