Forge or Minecraft version issues

Oct 13, 2025 by wbrum.org 25 views

Are you experiencing frequent crashes when launching Minecraft with your modpack? If so, you're not alone. Many players have reported similar issues, and in this article, we'll delve into the possible causes and solutions to help you resolve the problem.

Symptoms and Crashlog

The crashlog you provided indicates that the issue is related to YUNG's API and Cave Biomes. The error message suggests that there's a problem with the registry being frozen, which is a critical component of the Minecraft modding ecosystem.

---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 2025-03-09 22:01:45
Description: Initializing game

java.lang.ExceptionInInitializerError: null
	at net.minecraft.client.renderer.Sheets.<clinit>(Sheets.java:231) ~[client-1.20.1-20230612.114412-srg.jar%23281!/:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:mixin:APP:yungscavebiomes.mixins.json:lost_caves.client.SheetsMixin,pl:mixin:APP:supplementaries-common.mixins.json:DumbMixin,pl:mixin:A,pl:runtimedistcleaner:A}
	at net.minecraft.client.resources.model.ModelManager.<clinit>(ModelManager.java:44) ~[client-1.20.1-20230612.114412-srg.jar%23281!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.<init>(Minecraft.java:487) ~[client-1.20.1-20230612.114412-srg.jar%23281!/:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick_render_call,xf:fml:xaeroworldmap:xaero_wm_minecraftclient,xf:fml:xaerominimap:xaero_minecraftclient,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick_render_call,xf:fml:xaeroworldmap:xaero_wm_minecraftclient,xf:fml:xaerominimap:xaero_minecraftclient,pl:mixin:A,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:182) ~[forge-47.3.0.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
	at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) ~[fmlloader-1.20.1-47.3.0.jar:?] {}
	at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:99) ~[fmlloader-1.20.1-47.3.0.jar:?] {}
	at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$makeService$0(CommonClientLaunchHandler.java:25) ~[fmlloader-1.20.1-47.3.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar:?] {}
	at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {}

Possible Causes

Based on the crashlog, it appears that the issue is related to the registry being frozen. This can be caused by a variety of factors, including:

Mod conflicts: Conflicts between mods can cause the registry to become frozen, leading to crashes.
Mod incompatibilities: Incompatibilities between mods can also cause the registry to become frozen.
Forge or Minecraft version issues: Issues with the Forge or Minecraft version can cause the registry to become frozen.

Solutions

To resolve the issue, you can try the following solutions:

Update your mods: Make sure that all of your mods are up-to-date, as newer versions may resolve compatibility issues.
Disable mods: Try disabling individual mods to see if the issue persists. This can help you identify which mod is causing the problem.
Update Forge or Minecraft: Make sure that you're running the latest version of Forge or Minecraft, as updates may resolve compatibility issues.
Reset your modpack: If none of the above solutions work, you may need to reset your modpack to its default state.

Additional Tips

Check the modpack's documentation: Make sure that you're following the modpack's documentation and installation instructions carefully.
Join a Minecraft community: Joining a Minecraft community can provide you with access to a wealth of knowledge and resources to help you troubleshoot issues.
Be patient: Resolving modding issues can be time-consuming and frustrating, so be patient and don't get discouraged.

Conclusion

In conclusion, the issue you're experiencing is likely related to a mod conflict or incompatibility. By following the solutions outlined above, you should be able to resolve the issue and get back to playing Minecraft with your modpack. Remember to be patient and don't get discouraged, as resolving modding issues can be time-consuming and frustrating.
Q&A: Troubleshooting Minecraft Modpack Crashes

In our previous article, we explored the possible causes and solutions to Minecraft modpack crashes. However, we understand that sometimes, it's not enough to just provide general solutions. That's why we've put together a Q&A section to help you troubleshoot specific issues related to Minecraft modpack crashes.

Q: What are the most common causes of Minecraft modpack crashes?

A: The most common causes of Minecraft modpack crashes include mod conflicts, mod incompatibilities, and issues with the Forge or Minecraft version.

Q: How can I identify which mod is causing the crash?

A: To identify which mod is causing the crash, try disabling individual mods one by one to see if the issue persists. You can also check the modpack's documentation and installation instructions to see if there are any known compatibility issues.

Q: What should I do if I'm experiencing a crash on launch?

A: If you're experiencing a crash on launch, try updating your mods, disabling mods, or updating Forge or Minecraft. If none of these solutions work, you may need to reset your modpack to its default state.

Q: How can I prevent mod conflicts and incompatibilities?

A: To prevent mod conflicts and incompatibilities, make sure to:

Update your mods regularly
Check the modpack's documentation and installation instructions carefully
Disable mods one by one to see if the issue persists
Use a mod manager like Forge or Minecraft's built-in mod manager to manage your mods

Q: What are some common error messages I might see when experiencing a modpack crash?

A: Some common error messages you might see when experiencing a modpack crash include:

"Registry is already frozen"
"Mod conflict detected"
"Incompatible mod detected"
"Forge or Minecraft version issue"

Q: How can I troubleshoot a modpack crash if I'm not sure what's causing it?

A: If you're not sure what's causing the modpack crash, try:

Checking the modpack's documentation and installation instructions
Disabling mods one by one to see if the issue persists
Updating your mods, Forge, or Minecraft
Joining a Minecraft community or seeking help from a modding expert

Q: Can I use a modpack with multiple mods?

A: Yes, you can use a modpack with multiple mods. However, be aware that mod conflicts and incompatibilities can occur, so make sure to follow the modpack's documentation and installation instructions carefully.

Q: How can I report a modpack crash to the modpack developers?

A: To report a modpack crash to the modpack developers, follow these steps:

Check the modpack's documentation and installation instructions to see if there are any known issues or bugs
Search online for solutions to the issue
Join a Minecraft community or seek help from a modding expert
Contact the modpack developers directly through their website or social media channels

Q: Can I use a modpack with a custom Minecraft version?

A: Yes, you can use a modpack with a custom Minecraft version. However, be aware that mod conflicts and incompatibilities can occur, so make sure to follow the modpack's documentation and installation instructions carefully.

Q: How can I troubleshoot a modpack crash if I'm using a custom Minecraft version?

A: If you're using a custom Minecraft version and experiencing a modpack crash, try:

Checking the modpack's documentation and installation instructions
Disabling mods one by one to see if the issue persists
Updating your mods, Forge, or Minecraft
Joining a Minecraft community or seeking help from a modding expert

Conclusion

In conclusion, troubleshooting Minecraft modpack crashes can be a complex and time-consuming process. However, by following the solutions and tips outlined in this Q&A section, you should be able to identify and resolve the issue. Remember to be patient and don't get discouraged, as resolving modding issues can be frustrating at times.