Version

lithium-fabric-mc1.18-0.7.6-rc1.jar

Reproduction Steps

Update to fabric 10.2

start server with lithium installed - class errors
remove lithium - server starts normally

Is this still an issue for the newer releases?

I was using a snapshot of Lithium 0.7.6 I downloaded in late December with no issues until earlier today. Updated to 0.7.7 now and no issues so far on the server. Edit: I am using Fabric 0.12.12 now, so my feedback probably isn't valuable for this issue anymore

How are you using fabric 10.2? The latest fabric version is 0.12.9. Maybe you are confusing the fabric loader with the fabric installer?

Fabric Loader (the mod loader itself) is required.

Fabric API (a Fabric mod which provides some basic functionality for modders) is not required for Lithium, but is typically required for other mods.

Fabric Installer simply installs Fabric Loader into your game, whether a dedicated server or client. It's then the user's responsibility to install Fabric API and/or any of their other mods to the folder that Fabric Loader creates.

Provide a crash log if you are having issues. We are (regrettably) not psychic.

I am running a dedicated server, as far as I know you don't need the fabric loader for that. The most recent version of the fabric installer is 0.10.2. I could be wrong though

error.txt

here is my output when starting the server. it was working and all I did was update fabric loader using the 0.10.2 installer and now lithium is giving me issues

A server with 0.12.9 installed does indeed not start when Lithium is installed

Its 1.18 Server running on linux, what is your configuration?

1.18.1 on Windows here. In my case the log even explicitly states there's a compatibility issue 2021-12-10-6.log

It's actually stated somewhere in the lithium pages that they only allow specific versions of minecraft, ie if there is an update it will break lithium. However I have only updated fabric and not minecraft.

I was under the assumption that 0.12.9 was exclusive to 1.18.1, since installing a 0.12.9 server using the installer (10.2, same as you are using) installed a 1.18.1 server.

I am running 1.18 with 12.9 just without lithium atm. I believe there is an option to download the current version of minecraft when installing fabric. That might be what happened to you?

Oh yeah, of course! I did decide to reinstall everything from scratch. Well, gonna go without Lithium and wait for it to get updated then.

I believe the fabric 0.10.2 installer also patches this vulnerability without having to update to 1.18.1

1.18.1 fixes a pretty serious security vulnerability, but I don't think it's a big change, so I hope Lithium gets updated soon.

I believe the fabric 0.10.2 installer also patches this vulnerability without having to update to 1.18.1

Reverting to 1.18 is not a viable option. In our case we'll be unable to run lithium until it supports 1.18.1

1.18.1 fabric loader 0.12.9 does not work with lithium at the moment, this is the crash I get

crash-2021-12-11_15.28.33-server.txt

I believe the fabric 0.10.2 installer also patches this vulnerability without having to update to 1.18.1

Reverting to 1.18 is not a viable option. In our case we'll be unable to run lithium until it supports 1.18.1

That's understandable, but this is not the issue that this post is based on. In fact, Lithum will not automatically support newer versions of minecraft. That is intended, while this is not

Might be related to #326