Minecraft version
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CurseForge · Minecraft mod
err.null
"you shouldn't be here"
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which err.null release should I use?
Latest stable file errnull-1.0.4-forge-1.20.1.jar
Game version 1.20.1
Loader Forge
err.null errnull-1.0.4-forge-1.20.1.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is err.null required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does err.null errnull-1.0.4-forge-1.20.1.jar need?
errnull-1.0.4-forge-1.20.1.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add err.null without breaking your instance.
Built for err.null errnull-1.0.4-forge-1.20.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use errnull-1.0.4-forge-1.20.1.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside errnull-1.0.4-forge-1.20.1.jar. It opens that exact file at the source.
About this project
What does err.null add?
Minecraft 0.0.0 is not a normal version of Minecraft.
This is their version your world is their world.
They don't want you messing with their world.
They want you gone.
This mod will...
- Place blocks.
- Slightly grief your world.
- Jumpscare you.
- Talk to you...
Project description from CurseForge.
Pick your setup
err.null by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
err.null versions and loaders
errnull-1.0.4-forge-1.20.1.jar
27 Apr 2025
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
errnull-1.0.3-forge-1.20.1.jar
26 Apr 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
errnull-1.0.2-forge-1.20.1.jar
25 Apr 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
errnull-1.0.1-forge-1.20.1.jar
24 Apr 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
errnull-1.0.0-forge-1.20.1.jar
22 Apr 2025
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Looking for an older file? The official CurseForge project page is in Resources.
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