Hi,

i'm trying to use this mod in a Dedicated_server and i have this issue.

Thanx for all!

Description:

-- Head --
Thread: main
Stacktrace:
at net.minecraftforge.fml.loading.RuntimeDistCleaner.processClassWithFlags(RuntimeDistCleaner.java:71) ~[forge-1.16.5-36.1.32.jar:36.1] {}
-- MOD rpg-hud --
Details:
Mod File: [1.16.5][Forge] RPG-HUD-3.8.4.jar
Failure message: RPG-Hud has class loading errors
java.lang.RuntimeException: Attempted to load class net/spellcraftgaming/rpghud/main/ModRPGHud for invalid dist DEDICATED_SERVER
Mod Version: 3.8.4
Mod Issue URL: https://github.com/KurodaAkira/RPG-Hud/issues
Exception message: java.lang.RuntimeException: Attempted to load class net/spellcraftgaming/rpghud/main/ModRPGHud for invalid dist DEDICATED_SERVER

More detail:
crash-2021-06-22_12.28.33-fml.txt

thanks! this helped

Dont put the mod in the mods folder of a server.
It does not belong there.
The mod works entirely on the side of the client.

yea im getting the same problem

Someone on the Forge Discord also had this issue, which prompted me to take a closer look:
The @OnlyIn annotation is a marker annotation that should only exist in Vanilla MC code. It has no purpose in mod code and may even lead to classloading errors being hidden in a dev environment when used in mod code.

Furthermore, the general consensus is that one-sided mods should simply not do anything when installed on the wrong side (except notifying the user via a log warning) instead of crashing. Do note that this requires moving all code that accesses client-only code out of the class marked with @Mod and into a class which is only loaded when running on the client (for example by registering the event listeners with the @Mod.EventBusSubscriber annotation instead of via EventBus#addListener()).

If you have any more questions regarding this, feel free to come by the Forge Discord.