Once you provide these, I can generate a proper technical or investigative report.
Download the latest successful build compiled for Minecraft 1.21.1.
Meteor caches compiled packages and addons. If a cache entry for an addon (internal ID 1211) becomes corrupted, Meteor will reject using it and fail the build.
Remove all existing files and reinstall correctly. meteor rejects addon 1211 work
First, let's clarify what we're dealing with. is not an official addon; it's a community-driven extension for the Meteor Client *, a popular utility mod for Minecraft (Fabric) often used on anarchy servers.
: Reports indicate that version mismatches (e.g., trying to run a 1.21.4 build on 1.21.1) cause immediate crashes during startup.
node --version meteor --version
Sometimes, old client configuration files conflict with new addon updates. Close Minecraft completely.
: As of March 2026 , the addon has been updated to support newer versions like 1.21.11 . Users on the 1.21.1 version often use the builds labeled for 1.21 or the immediate subsequent updates, as Fabric mods in this range are frequently cross-compatible. Common Issues :
Follow these exact steps to ensure a clean, working installation for 1.21.1: 1. Update the Fabric Loader Once you provide these, I can generate a
: Tools like .reconnect or .rejoin allow for quick session resets.
When the primary development branch on the AntiCope Repository stalls, independent community developers frequently submit fixes via Pull Requests.