If you are playing on a modern 1.21 patch, download the matching version of the base Meteor Client Archive and pair it strictly with its respective Fabric API release. 2. Source Unofficial Developer Pull Requests
: Open the Fabric instance. The Rejects modules will appear under their own tab or integrated into existing categories within the Meteor GUI. ⚠️ Known Issues and Risks : Some modules, like
Delete the config folder inside the root directory to reset module defaults. 2. Isolate the Core Dependencies
Test Meteor and Rejects alone first. Re-add other addons one by one to find the conflict. Outdated Java Runtime Environment (JRE). meteor rejects addon 1211 work
The most common cause for 1.21.1 issues is using an outdated .jar. Download the latest build (currently targeting 1.21.4 and above but compatible with earlier 1.21 sub-versions) directly from the AntiCope Meteor Rejects page or their GitHub Releases .
Open your terminal or command prompt and run:
Boot the game. If it functions, add your secondary modules back one by one to pinpoint the incompatibility. Verifying Successful Installation Feature Status Fix If Broken Pressing Right Shift opens the customized HUD layout. Re-bind the click GUI menu in standard controls. Command Processing .help lists the 14+ custom Rejects commands. Check for conflicting command prefix mods. Module Toggle Activating unique modules does not trigger a crash. Re-verify that the Fabric API version matches 1.21.11. If you are playing on a modern 1
Without these, you may see errors like NoClassDefFoundError in your logs.
You should see a distinct, operational category containing modules like specialized server exploits, legacy combat modes, and alternative utility tools that the core development team intentionally bypassed.
Back up your layouts or waypoints, then clear or delete the old configuration files for the Rejects addon to let it build a clean slate on your next boot. 4. Evaluate Functional Alternatives The Rejects modules will appear under their own
: Get the corresponding version from the AntiCope GitHub Releases .
: Ensure your Meteor Client version matches Minecraft 1.21.1 exactly.