Mixin transformation of net.minecraft.entity.passive.SheepEntity failed

[Intezium]

I'm trying to make an event from tutorial (https://fabricmc.net/wiki/tutorial:events).
Error log

SheepShearMixin.java

@Mixin(SheepEntity.class)
public class SheepShearMixin {

    @Inject(at = @At(value = "INVOKE", target = "Lnet/minecraft/entity/passive/SheepEntity;sheared()V"), method = "interactMob", cancellable = true)
    private void onShear(final PlayerEntity player, final Hand hand, final CallbackInfoReturnable<Boolean> info) {
        ActionResult result = SheepShearCallback.EVENT.invoker().interact(player, (SheepEntity) (Object) this);

        if(result == ActionResult.FAIL) {
            info.cancel();
        }
    }
}

ExampleMod.java#onInitialize

SheepShearCallback.EVENT.register((player, sheep) -> {
	sheep.setSheared(true);

	// create diamond item entity at sheep position
	ItemStack stack = new ItemStack(Items.DIAMOND);
	ItemEntity itemEntity = new ItemEntity(player.world, sheep.getX(), sheep.getY(), sheep.getZ(), stack);
	player.world.spawnEntity(itemEntity);

	return ActionResult.FAIL;
});

[Linguardium]

sheared takes an argument now

[warjort]

Yes, it takes a sound category.

    @Override
    public void sheared(SoundCategory shearedSoundCategory) {

So the target needs to be like (untested code)
target = "Lnet/minecraft/entity/passive/SheepEntity;sheared(Lnet/minecraft/sound/SoundCategory;)V"