Server setupNoClassDefFoundError: org/lwjgl/Version When Starting Server with Sodium
What it looks like in the log
java.lang.ClassNotFoundException: org.lwjgl.Version
How to fix it
- Stop the server if the startup script is looping.
- Open your dedicated server's `mods` folder and delete the `sodium` `.jar` file.
- Check the server's `mods` folder for any Sodium add-ons or other client-only rendering mods (such as Iris, Sodium Extra, or Reese's Sodium Options) and remove them from the server as well.
- Keep Sodium installed only in your personal Minecraft client's `mods` folder—players can still join the server with Sodium on their clients.
- Start the server again.
| Loaders | Neoforge, Server |
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| Severity | Stops the game |
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| Category | Server setup |
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Check your own logDownload sodium on 9Minecraft