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Last modified on Aug 4, 2021 in General
Having a modded Minecraft server is a great way to customize your gameplay experience. However, playing with mods is not as simple as just uploading them to your server. For every mod that goes into your server, it has to be run client-side. Minecraft by default does not run mods so you need to use a mod loader, Forge. There are multiple different ways you can add mods whether you are just installing Forge and the mods manually to Minecraft or if you are using a launcher such as the Twitch Desktop App. Adding mods to your Minecraft client can be tricky, however, we will be walking you through each step of the process.
Keep in mind that in order for mods to work, you must be running Forge. You can find our guide on installing Minecraft Forge here.
This section only covers how-to on the default Minecraft launcher with Forge installed.
Minecraft Crashes on startup
Minecraft crashing on startup can be a result of a variety of different issues. If this is happening to you, you need to check that all of your mods are for the correct version of Forge, there are no duplicate mods, and that you are not missing any dependencies. You can also test to see if it is the mods crashing the game by launching it without any mods loaded. If you still can’t find out which mod is the issue, you can add the mods back one at a time. This may take a bit of time but it is effective.
Getting Mod Rejections when trying to join a server
Having a mod rejection either means that the mod is not the same version as the one from the server, or that you are missing a mod on your Minecraft client that is on your server or vice versa. Double-check that your mods folder from client-side matches with the server-side mods folder with the exception of client-side only mods.
This server has mods that require FML/Forge to be installed on the client
This means that Forge is not on your Minecraft client at all. This could be that you are just launching the wrong version. Close the client and double-check that it is running the Forge version, if you don’t see Forge under the versions you will need to reinstall it.