1.20.1 mixins error

[TheLatinTeacherNearYou]

I am trying to run a forge server with some mods, I've already fixed some issue with it already, but I'm not sure about this one, any help would be appreciated. thanks in advance

cmd:

https://justpaste.it/i0tpn

[Ugdhar]

Looks like it's the obscureapi mod

Quote

[18:07:41] [modloading-worker-0/ERROR] [ne.mi.ev.EventSubclassTransformer/EVENTBUS]: Could not find parent net/minecraft/client/renderer/entity/layers/RenderLayer for class com/obscuria/obscureapi/client/renderer/PatreonLayer in classloader cpw.mods.modlauncher.TransformingClassLoader@6d3ad37a on thread Thread[#66,modloading-worker-0,5,main]

Someone also commented on their curseforge page that the same issue randomly crashes their server.

[TheLatinTeacherNearYou]

Thank you for the quick response, I tried deleting obscure api and the things dependent on it, namely Aquamirae, however, when I tried to run it again, it seems to have had the exact same error.

[Ugdhar]

35 minutes ago, TheLatinTeacherNearYou said:

when I tried to run it again, it seems to have had the exact same error.

Always post new logs after trying something and it doesn't work  Should help narrow it down.

[TheLatinTeacherNearYou]

thank you! i was unsure because in the FAQ it said to not bring new problems into the comments of topics, so i was unsure if i was supposed to make a new topic for it. i also just wanted to say that this has been far more helpful than the other help forums I've been on(math and science stackexchange, not for this but problems corresponding to them).

anyway, here are the logs: https://jpst.it/4x8Kv

[TheLatinTeacherNearYou]

On 8/22/2025 at 6:09 PM, Ugdhar said:

Always post new logs after trying something and it doesn't work  Should help narrow it down.

 

[TileEntity]

For 1.20.1, ise Java 17 instead of Java 21

Do not run your server via OneDrive directory:

C:/Users/matth/OneDrive/Desktop/lotm/

Move it to 

C:/Users/matth/lotm/

or similar

 

In your server's mods folder are some client-side-only mods

valkyrienskies-120-2.3.0-beta.9 is mentioned - maybe just this build is not working on servers

moonlight is mentioned, too - so this mod or a mod requiring it

[TheLatinTeacherNearYou]

Could you point out which mods are client side please? While downloading these i was already avoiding the client side mods, so im not sure which ones are the offenders.

[TheLatinTeacherNearYou]

Thank you, I got it working, I believe it was valkyrien skies that was the problem.