ModsJava
CBC Military Supplement fix
Java mod listed for Minecraft 1.21. File opened and checked on 15 Oct 2026; downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthCBC Military Supplement Fix
A small compatibility fix for CBC Military Supplement 2.1.0 for Minecraft 1.21.1.
It prevents a startup crash on newer NeoForge versions caused by duplicate
registration of the cbcmoreshells:sonar_pulse sound event:
java.lang.IllegalStateException: Adding duplicate key 'ResourceKey[minecraft:sound_event / cbcmoreshells:sonar_pulse]'
Install this fix alongside the original CBC Military Supplement mod.
Once the original mod author fixes this issue, this project will be archived.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as cbc_military_supplement_fix-1.0.0.jar — drop this file into the mods folder
- Download size: 55 KB
- Download link checked 4 Oct 2026 — working
These come from our own check of the pack file, not from the source page.