Forge 1.21

• 1.21 ...
• Packed Up, ...
• Core lib, ...

I have tried versions 1.1.17, 1.1.6 and 1.1.8, still aint working

Crash report (~/logs/latest.log)
[Server] INFO -- MOD packedup --
27.07 04:16:07 [Server] INFO Details:
27.07 04:16:07 [Server] INFO Mod File: /mods/packedup-1.0.30b-forge-mc1.21.jar
27.07 04:16:07 [Server] INFO Failure message: Mod packedup requires supermartijn642corelib 1.1.17 or above, and below 1.2.0
27.07 04:16:07 [Server] INFO Currently, supermartijn642corelib is not installed
27.07 04:16:07 [Server] INFO Mod Version: 1.0.30+b
27.07 04:16:07 [Server] INFO Mod Issue URL: https://github.com/SuperMartijn642/PackedUp/issues
27.07 04:16:07 [Server] INFO Exception message: MISSING EXCEPTION MESSAGE

You need to install my core library https://www.curseforge.com/minecraft/mc-mods/supermartijn642s-core-lib

What mods do you have installed? What is in your mods folder?

ive tired many times with many versions, keep getting the same result on server and client