What Feature Types Apply to This Bug?

System

Other Type

No response

What Type of Bug Is This?

Compatibility

Mod Loader

NeoForge

Mod Loader Version

21.1.68

The Aether Version

1.5.1-beta.1

Steps to Reproduce

1. Copy aether-1.21.1-1.5.1-beta.1-neoforge.jar to mod folder
2. (optional) Copy "owo-lib-neoforge-0.12.15-beta.9+1.21.jar" to mod folder
3. Run minecraft

Get in the log:

[14:47:59.405] [main/ERROR] [loading.moddiscovery.locators.JarInJarDependencyLocator/]: Failed to load mod file META-INF\jarjar\nitrogen_internals-1.21.1-1.1.20-neoforge.jar from aether-1.21.1-1.5.1-beta.1-neoforge.jar

Also see exception dump below

Additional Details

stderr.txt

Please Read and Confirm The Following

• I have confirmed this bug can be replicated without the use of Optifine.
• I have confirmed this bug is on the most recently supported version of Minecraft.
• I have confirmed the details provided in this report are concise as possible and does not contain vague information (ie. Versions are properly recorded, answers to questions are clear).
• I have confirmed this bug is unique and has not been reported already.
• If playing on a modpack, I have reported this bug to their issue tracker already.
• I have confirmed that I'm reporting a bug in The Aether I, not The Aether II.

Can you try redownloading the mod? There was a briefly released beta version that was taken down that had a problem where Nitrogen wasn't loading and that looks like this issue.

May be later I'll try update NeoForge
In any case "owo" mod should be specified as required dependency on the curseforge

It is

Also your NeoForge is out of date.

Oh, it seems despite specifying the required dependencies in the files it doesn't apply to default relations, annoying. I'll update that as well.

Edit: Done.

If I remove

mods/aether-1.21.1-1.5.1-beta.1-neoforge.jar
mods/owo-lib-neoforge-0.12.15-beta.9+1.21.jar

then no problems with loading

I've updated the dependencies on the page's settings hours ago, I have no idea how CurseForge hasn't updated them on the front end yet.

Attempt to load a world created in NeoForge 21.1.68

Can you send the log file for the given instance?

If I remove

mods/aether-1.21.1-1.5.1-beta.1-neoforge.jar mods/owo-lib-neoforge-0.12.15-beta.9+1.21.jar

then no problems with loading

Then we need the log.

log.txt

Ah, there will be another beta release soon to fix this issue.

thank you :)

https://www.curseforge.com/minecraft/mc-mods/aether/files/5899060 here it is now

Yes
aether-1.21.1-1.5.1-beta.2-neoforge.jar

• is OK.

Old world is loaded and I was able to enter Aether dimension.

Although, when I tried to step back then I was moved to new different portal in the Overworld. It's still works.