Failed to load Sodium config - 26.1.2

[abuserightclick]

Hello, I recently updated my modpack from 1.21.11 to 26.1.2, and it would seem that Borderless Fullscreen fails to launch with Sodium installed. Tested this on a clean instance with just Sodium and Borderless Fullscreen installed and the error persists, with Minecraft infinitely loading resources. Error is below but if you want the full log it is linked as well.
Log: https://mclo.gs/t0k1qld

[06:25:07] [Render thread/INFO]: Caught error loading resourcepacks, removing all selected resourcepacks
java.lang.NoClassDefFoundError: net/caffeinemc/mods/sodium/client/gui/SodiumConfigBuilder$FullscreenMode
	at knot//net.caffeinemc.mods.sodium.client.gui.SodiumConfigBuilder.modify$bdp000$fullscreenfix$replaceFullscreenButton(SodiumConfigBuilder.java:825)
	at knot//net.caffeinemc.mods.sodium.client.gui.SodiumConfigBuilder.buildGeneralPage(SodiumConfigBuilder.java:201)
	at knot//net.caffeinemc.mods.sodium.client.gui.SodiumConfigBuilder.buildFullConfig(SodiumConfigBuilder.java:140)
	at knot//net.caffeinemc.mods.sodium.client.gui.SodiumConfigBuilder.registerConfigLate(SodiumConfigBuilder.java:114)
	at knot//net.caffeinemc.mods.sodium.client.config.ConfigManager.registerConfigs(ConfigManager.java:93)
	at knot//net.caffeinemc.mods.sodium.client.config.ConfigManager.registerConfigsLate(ConfigManager.java:76)
	at knot//net.minecraft.client.Minecraft.handler$bea000$sodium$postInit(Minecraft.java:6231)
	at knot//net.minecraft.client.Minecraft.buildInitialScreens(Minecraft.java:827)
	at knot//net.minecraft.client.Minecraft.onGameLoadFinished(Minecraft.java:794)
	at knot//net.minecraft.client.Minecraft.onResourceLoadFinished(Minecraft.java:789)
	at knot//net.minecraft.client.Minecraft.lambda$new$6(Minecraft.java:754)
	at knot//net.minecraft.util.Util.ifElse(Util.java:679)
	at knot//net.minecraft.client.Minecraft.lambda$new$4(Minecraft.java:749)
	at knot//net.minecraft.client.gui.screens.LoadingOverlay.tick(LoadingOverlay.java:139)
	at knot//net.minecraft.client.Minecraft.tick(Minecraft.java:1952)
	at knot//net.minecraft.client.Minecraft.runTick(Minecraft.java:1360)
	at knot//net.minecraft.client.Minecraft.run(Minecraft.java:991)
	at knot//net.minecraft.client.main.Main.main(Main.java:248)
	at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:514)
	at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72)
	at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
	at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:115)
	at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129)
	at org.prismlauncher.EntryPoint.main(EntryPoint.java:70)
Caused by: java.lang.ClassNotFoundException: net.caffeinemc.mods.sodium.client.gui.SodiumConfigBuilder$FullscreenMode
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:580)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490)
	at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:239)
	at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490)
	... 24 more

[douira]

We recently changed around some classes related to this, so that's probably where the error comes from. We're working on improving our config screen to make this type of error more user friendly.

I would also like to point out that Sodium offers a Config API to interact with options on Sodium's video settings screen. Please don't use mixins on our config screen in this way.

[FlashyReese]

The existing SodiumCompat.getCustomFullscreenButton(builder) already returns a Config API option, so it can be registered without mixing into SodiumConfigBuilder.

Register a Config API entrypoint in fabric.mod.json:

"sodium:config_api_user": [
  "b100.fullscreenfix.SodiumConfigIntegration"
]

Then register the replacement:

public final class SodiumConfigIntegration implements ConfigEntryPoint {
    @Override
    public void registerConfigLate(ConfigBuilder builder) {
        builder.registerOwnModOptions().registerOptionReplacement(
                Identifier.fromNamespaceAndPath("sodium", "general.fullscreen_mode"),
                SodiumCompat.getCustomFullscreenButton(builder)
        );
    }
}

registerOptionReplacement fits here because the mod replaces the option's binding and behavior.

API documentation: https://github.com/CaffeineMC/sodium-fabric/blob/26.1.2/stable/common/src/api/java/net/caffeinemc/mods/sodium/api/config/USAGE.md#using-option-overlays-and-replacement

[Bestsoft101]

Thank you for the report, the issue is fixed in this version https://modrinth.com/mod/borderless-fullscreen/version/2.4.1_01-26.1.2

[Bestsoft101]

Aw I didn't see the other comments because I didn't reload the page

[douira]

I've marked 2.4.1 as incompatible with upcoming Sodium versions so that the modloader clearly indicates to users that they need to use a newer version. I don't know what the version "2.4.1_01" is supposed to mean under semver, but I hope it satisfies >2.4.1.

[Bestsoft101]

I need a way to remove the Fullscreen Resolution option through the config API, because in 1.21.1, the Fullscreen option is a boolean, but my replacement option is an enum, and the Fullscreen Resolution option depends on the Fullscreen option, expecting a boolean value.