Cobblemon Crash: Clockwork Mod Conflict & Fixes

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Clockwork Causes Cobblemon to Crash

Introduction

Hey guys! Running into Minecraft crashes can be super frustrating, especially when you're trying to enjoy your favorite mods like Cobblemon and Clockwork. In this article, we're diving deep into a specific issue: why the Clockwork mod can cause Cobblemon to crash, and how to potentially fix it. We'll break down the error messages, analyze the logs, and explore possible solutions to get you back to your modded Minecraft fun. Let's get started!

Understanding the Issue: Cobblemon and Clockwork Clash

So, you're trying to load up your modded Minecraft game with Cobblemon, Valkyrien Skies, and the Clockwork mod, but you keep getting a crash? You're not alone! Many players have reported similar issues, and it usually manifests as an ERROR DURING MOD LOADING. The error message often points to a missing file, specifically a .json model file related to Cobblemon. For instance, the error might look like this:

java.lang.RuntimeException: java.io.FileNotFoundException: cobblemon:models/block/restoration_tank_fluid_bubbling.json

This error indicates that the game is trying to load a specific model file (restoration_tank_fluid_bubbling.json) that it can't find within the Cobblemon mod's assets. But, why does this happen when Clockwork is involved? Well, mod interactions can be tricky. Sometimes, mods can conflict with each other due to overlapping functionalities, asset loading issues, or even incompatibilities in their code. In this case, it seems Clockwork's presence triggers Cobblemon to fail in loading its models correctly. The crash report suggests that the game fails during the resource loading phase, particularly when the ModelBakery class is trying to initialize models. This class is responsible for baking (or preparing) the models for rendering in the game. When Clockwork is present, it somehow interferes with this process, leading to the FileNotFoundException.

Why is this happening, though? A few potential reasons:

  1. Asset Overriding: Clockwork might be attempting to override or modify Cobblemon's assets, leading to the game not finding the original files.
  2. Loading Order: The order in which the mods are loaded might be causing issues. Clockwork might be initializing something that Cobblemon relies on before Cobblemon can properly load its assets.
  3. Mixin Conflicts: Both mods might be using Mixins (a code modification tool) to alter the same parts of the game's code, leading to conflicts and unexpected behavior.
  4. Dependency Issues: Clockwork might have a dependency on a specific version of another mod or library that conflicts with what Cobblemon requires.

To resolve this, we need to dig deeper into the logs and try some troubleshooting steps. Keep reading to find out how!

Reproducing the Issue

To effectively troubleshoot this crash, it's essential to reproduce it consistently. Based on the information provided, here's how you can reproduce the issue:

  1. Minecraft Version: Ensure you are running Minecraft version 1.20.x.
  2. Mod Loader: Use Forge as your mod loader.
  3. Mods: Install the following mods:
    • Clockwork
    • Cobblemon
    • Create
    • Kotlin for Forge
    • Valkyrien Skies
  4. Launch Minecraft: Launch the game with these mods enabled.

If the issue is present, the game should crash during the mod loading phase with the FileNotFoundException error related to Cobblemon's model files. By consistently reproducing the crash, you can test different solutions to see if they resolve the problem.

Analyzing the Logs

The logs provide crucial information about what's happening during the game's startup and when the crash occurs. Let's break down the provided latest.log to understand the issue better.

  1. Mod Loading: The log shows that ModLauncher is running and loading the mods. It lists the mods that are found, including Clockwork, Cobblemon, Create, Kotlin for Forge, and Valkyrien Skies.
  2. Missing mods.toml Warnings: There are warnings about missing mods.toml files for some core Minecraft Forge components. While these warnings might not be directly related to the crash, they indicate potential issues with the mod loading process.
  3. Class Loading Errors: Several Error loading class warnings appear, indicating that certain classes from other mods (like ComputerCraft, Create Big Cannons, and others) could not be found. These errors suggest potential compatibility issues or missing dependencies, but they might not be the primary cause of the crash.
  4. CoreMod Transform Error: A critical error occurs during the application of a coremod transform: Error occurred applying transform of coremod coremods/field_to_method.js function biome. This error indicates an issue with a coremod attempting to modify the game's code, specifically related to biome generation. The error message java.lang.IllegalStateException: Field f_47437_ is not private and an instance field suggests that the coremod is trying to access a field that it shouldn't, leading to the failure.
  5. Clockwork Initialization Failure: The log shows that the game failed to create a mod instance for Clockwork: Failed to create mod instance. ModID: vs_clockwork, class org.valkyrienskies.clockwork.forge.ClockworkModForge. The error java.lang.NoClassDefFoundError: com/simibubi/create/content/kinetics/BlockStressDefaults indicates that Clockwork depends on a class from the Create mod (BlockStressDefaults) that it cannot find. This is a critical clue because it means Clockwork is not properly initialized due to a missing dependency.
  6. Cobblemon Model Loading Error: The core issue appears here: java.io.FileNotFoundException: cobblemon:models/block/restoration_tank_fluid_bubbling.json. This confirms that the game is failing to load a specific model file from Cobblemon.
  7. Crash Report: The log ends with a crash report indicating that the game crashed while rendering an overlay, ultimately caused by the FileNotFoundException for the Cobblemon model. It's important to note that The crash report points to a rendering issue caused by the missing model, but the root cause seems to be Clockwork's initialization failure due to a missing dependency from the Create mod.

Key Takeaways from the Logs

  • Clockwork's Dependency Issue: Clockwork fails to initialize because it cannot find a class from the Create mod (com.simibubi.create.content.kinetics.BlockStressDefaults).
  • Cobblemon's Model Loading Failure: The game crashes because it cannot load a specific model file (restoration_tank_fluid_bubbling.json) from Cobblemon.

Potential Solutions

Based on the log analysis, here are several potential solutions to address the crash:

1. Ensure Create Mod is Properly Installed

Since Clockwork depends on the Create mod, make sure that the Create mod is correctly installed and up to date. Verify that the Create mod version is compatible with the Minecraft version you are using. Sometimes, an outdated or corrupted Create mod can cause dependency issues. Re-download the Create mod from a reliable source (like CurseForge or Modrinth) and replace the existing file in your mods folder.

2. Check Clockwork Mod Version

Verify that you are using the correct version of the Clockwork mod that is compatible with your Minecraft version and the Create mod version. An incompatible version of Clockwork might be trying to access classes or resources that don't exist in the Create mod version you have installed. Check the Clockwork mod's documentation or its CurseForge/Modrinth page for compatibility information.

3. Mod Load Order

The order in which mods are loaded can sometimes affect their initialization. While Forge generally handles mod loading order, there might be cases where specifying the load order can help. Try renaming the mod files in your mods folder so that Create loads before Clockwork. For example, rename create-1.20.1-6.0.8.jar to _create-1.20.1-6.0.8.jar and clockwork-1.20.1-0.1.16-forge-b3b22e39fe.jar to _clockwork-1.20.1-0.1.16-forge-b3b22e39fe.jar. The underscore will make it load sooner. This forces Create to load before Clockwork.

4. Resolve CoreMod Conflict

The error related to the coremod transform (Error occurred applying transform of coremod coremods/field_to_method.js) suggests a conflict with a coremod that's trying to modify biome generation. This error might not be directly related to the Clockwork/Cobblemon issue, but it could be contributing to the overall instability. Try removing any coremods that modify biome generation or are known to cause conflicts. Check the documentation or issue trackers of those mods for known compatibility issues.

5. Check for Missing Dependencies

Sometimes, mods have hidden dependencies that are not explicitly listed. Check the Clockwork mod's documentation, CurseForge page, or Modrinth page for any additional dependencies that might be required. Make sure you have all the necessary dependencies installed in your mods folder.

6. Remove Conflicting Mods

If the issue persists, try removing other mods one by one to see if any of them are conflicting with Clockwork or Cobblemon. Start by removing mods that are known to cause compatibility issues or that modify similar aspects of the game (e.g., resource loading, rendering, or world generation).

7. Mixin Conflicts

If Clockwork and Cobblemon both use Mixins to modify the same parts of the game's code, there might be a conflict. Try disabling Mixins for one of the mods to see if it resolves the issue. However, this might require advanced knowledge of Mixins and mod configuration.

8. Reinstall Minecraft and Mods

As a last resort, try reinstalling Minecraft and all the mods from scratch. This ensures that you have a clean installation without any corrupted files or conflicting configurations. Follow these steps:

  1. Backup your saves.
  2. Uninstall Minecraft.
  3. Delete the Minecraft folder (usually located in %appdata%/.minecraft).
  4. Reinstall Minecraft.
  5. Reinstall Forge.
  6. Reinstall the mods (Create, Clockwork, Cobblemon, Kotlin for Forge, and Valkyrien Skies).

Conclusion

Alright, guys, that's a wrap! Dealing with mod crashes can be a real headache, but with a bit of investigation and troubleshooting, you can often find a solution. In this case, the Clockwork mod's dependency on the Create mod seems to be the primary culprit, leading to the Cobblemon model loading error. By ensuring that the Create mod is properly installed and up to date, you should be able to resolve the crash and get back to enjoying your modded Minecraft experience. Remember to check the logs, verify mod versions, and try different solutions until you find what works. Happy gaming!