Delete any older versions of the same addon.
Check for other addons that might override the same modules.
Start Minecraft, join a world/server, open Meteor GUI (Right Shift or your keybind).
Look for the addon’s modules/settings. meteorrejectsaddon033jar top
| Reason | Explanation |
|--------|-------------|
| Outdated API | The addon was built for an older version of Meteor that is no longer compatible. |
| Mismatched Minecraft version | Addon uses a different MC version (e.g., 1.19.2 addon on 1.20.4 Meteor). |
| Missing meteor-addon.json | The JAR doesn’t properly declare itself as a Meteor addon. |
| Corrupted JAR | The file was partially downloaded or modified. |
| Signature / developer check | Meteor may reject unsigned or untrusted addons (depending on settings). |
| Duplicate or conflicting addon | Another addon with the same internal ID is already loaded. | Delete any older versions of the same addon
[ ] Minecraft version matches Meteor’s target version.
[ ] Meteor Client itself loads fine without addon.
[ ] Addon .jar is in mods/ folder.
[ ] No spaces or special chars in .jar filename.
[ ] Downloaded addon from trusted source.
[ ] Fabric API is installed (if addon requires it).
[ ] No other mods conflict (test alone).
mods/ folder..jar file there — not inside any subfolder..jar is also in mods/.If you’re seeing an error like meteorrejectsaddon033jar top (or similar variations) while trying to load an addon for the Meteor Client (a Minecraft utility mod), you’re not alone. This message usually appears in the client’s console or chat when an addon JAR file is rejected. Open the mods/ folder
So, most likely you mean:
Meteor Client rejects addon
something-0.3.3.jar— looking for a good guide to fix it.