Add 1.21 support

[Wudji]

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 2024-06-15 15:43:04
Description: Initializing game

java.lang.RuntimeException: Could not execute entrypoint stage 'main' due to errors, provided by 'viafabric-mc121'!
    at net.fabricmc.loader.impl.FabricLoaderImpl.lambda$invokeEntrypoints$2(FabricLoaderImpl.java:388)
    at net.fabricmc.loader.impl.util.ExceptionUtil.gatherExceptions(ExceptionUtil.java:33)
    at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:386)
    at net.fabricmc.loader.impl.game.minecraft.Hooks.startClient(Hooks.java:52)
    at net.minecraft.class_310.<init>(class_310.java:477)
    at net.minecraft.client.main.Main.main(Main.java:239)
    at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:470)
    at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
    at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at oolloo.jlw.Wrapper.invokeMain(Wrapper.java:71)
    at oolloo.jlw.Wrapper.main(Wrapper.java:51)
Caused by: java.lang.IllegalArgumentException: displayleaks <level> is not a valid sub-command name.
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:143)
    at com.viaversion.viaversion.commands.ViaCommandHandler.registerSubCommand(ViaCommandHandler.java:54)
    at com.viaversion.viaversion.commands.ViaCommandHandler.registerDefaults(ViaCommandHandler.java:193)
    at com.viaversion.viaversion.commands.ViaCommandHandler.<init>(ViaCommandHandler.java:49)
    at com.viaversion.fabric.mc121.commands.VFCommandHandler.<init>(VFCommandHandler.java:30)
    at com.viaversion.fabric.mc121.ViaFabric.onInitialize(ViaFabric.java:81)
    at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:384)
    ... 10 more

[Kichura]

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 2024-06-15 15:43:04
Description: Initializing game

java.lang.RuntimeException: Could not execute entrypoint stage 'main' due to errors, provided by 'viafabric-mc121'!
  at net.fabricmc.loader.impl.FabricLoaderImpl.lambda$invokeEntrypoints$2(FabricLoaderImpl.java:388)
  at net.fabricmc.loader.impl.util.ExceptionUtil.gatherExceptions(ExceptionUtil.java:33)
  at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:386)
  at net.fabricmc.loader.impl.game.minecraft.Hooks.startClient(Hooks.java:52)
  at net.minecraft.class_310.<init>(class_310.java:477)
  at net.minecraft.client.main.Main.main(Main.java:239)
  at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:470)
  at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
  at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
  at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
  at java.base/java.lang.reflect.Method.invoke(Method.java:580)
  at oolloo.jlw.Wrapper.invokeMain(Wrapper.java:71)
  at oolloo.jlw.Wrapper.main(Wrapper.java:51)
Caused by: java.lang.IllegalArgumentException: displayleaks <level> is not a valid sub-command name.
  at com.google.common.base.Preconditions.checkArgument(Preconditions.java:143)
  at com.viaversion.viaversion.commands.ViaCommandHandler.registerSubCommand(ViaCommandHandler.java:54)
  at com.viaversion.viaversion.commands.ViaCommandHandler.registerDefaults(ViaCommandHandler.java:193)
  at com.viaversion.viaversion.commands.ViaCommandHandler.<init>(ViaCommandHandler.java:49)
  at com.viaversion.fabric.mc121.commands.VFCommandHandler.<init>(VFCommandHandler.java:30)
  at com.viaversion.fabric.mc121.ViaFabric.onInitialize(ViaFabric.java:81)
  at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:384)
  ... 10 more

did you use any third party mods by chance? and also you can't use the public dev build with this as that is not compatible.

[kel-cu]

It crashes without additional mods as well 🤔

[Kichura]

It crashes without additional mods as well 🤔

it's because you have to include the sponsored dev build of viaversion to your mods folder, but once viaversion 5 becomes public - it will be bumped here.

[FlorianMichael]

It crashes because your VV version is outdated