Minecraft is a sandbox game that allows players to customize their experience through the use of mods.
However, sometimes these mods can cause compatibility issues, resulting in errors such as the “Incompatible FML Modded Server” error.
The full error message reads: “Incompatible FML modded server Server mod list is not compatible”
In this article, we’ll explore what this error means and provide some solutions to fix it.
What Does “Incompatible FML Modded Server Mod List Is Not Compatible” Mean In Minecraft?
The “Incompatible FML Modded Server” error in Minecraft can happen for a few reasons.
Firstly, if you have different versions of mods installed on your server, they might not work well together.
Make sure that all the mods you use are made for the same Minecraft version.

Secondly, if your server is running an older Minecraft version, it might not be compatible with the mods you have installed.
Either update your mods or use the same Minecraft version as your mods.
Additionally, Minecraft has two popular mod loaders called Forge and Fabric, and different mods are made for specific loaders.
Using the wrong loader can cause compatibility problems, so check if your mod loader matches your mods.
Lastly, if your mods are corrupted or damaged, they can create compatibility issues.
How To Fix “Incompatible FML Modded Server Mod List Is Not Compatible” On Minecraft?
If you are encountering issues with the “Incompatible FML Modded Server” error in Minecraft, there are several potential fixes you can try:
1. Check Mods’ Compatibility
Verify that all the mods on your server are compatible with each other.
Some mods may require specific versions or dependencies to work correctly.

You can visit this link and check the compatibility of the mods.
2. Check The Minecraft Version
Make sure your server and mods are using the same Minecraft version by checking the

Minecraft website for the latest version and update your server accordingly.
To check the Minecraft version on Windows:
- Open the Minecraft Launcher.
- Go to the “Installations” tab.
- Look for the installed versions.
3. Check The Mod Loader
Confirm that your server is using the correct mod loader for the mods you have installed. Forge and Fabric are the main mod loaders for Minecraft.
Make sure the mods are compatible with the mod loader you are using.
4. Disable Some Mods
If the error continues, you can try turning off some of the mods on your server.
This way, you can identify which mod is causing the problem by disabling them one at a time and restarting the server.
To disable mods on your server, follow these steps:
- Connect to your server via FTP. Use an FTP client such as FileZilla to establish a connection with your server.
- Locate the mods folder. In the server folder list, navigate to the folder named “mods.”
- Select the mods you want to disable. Click on the checkboxes next to the mods that you wish to disable. This action will deselect the mods and prevent them from loading when the server starts.
5. Update The Mod
Mod creators often release updates to fix compatibility problems.
Visit the official website or forum of the mod to see if there are any updates available.
Updating your mods to their latest versions might solve the compatibility issue.
6. Uninstall And Reinstall The Minecraft
If none of the above solutions has worked uninstall Minecraft for your device then reinstall it from the official website.

To uninstall and reinstall Minecraft from your device follow these steps:
- Press the Windows key + “I” to open the Settings menu.
- Go to “Apps” or “Apps & features” in the Settings menu.
- In the search bar, type “Minecraft” to locate the Minecraft application.
- Once you find Minecraft in the list, click on it to select it.
- Click on the three dots button, usually located next to the app’s name.
- From the dropdown menu, choose “Uninstall” to remove Minecraft from your PC.
- Download the Minecraft installation file from the official website.
- Once the download is complete, locate the file and run it to install Minecraft on your PC.