I'm trying to play a sound when a person right/left clicks a soup here is the code and error: Code (Java): package com.soup.plugin; import org.bukkit.Bukkit; import org.bukkit.Material; import org.bukkit.Sound; import org.bukkit.entity.Player; import org.bukkit.event.EventHandler; import org.bukkit.event.EventPriority; import org.bukkit.event.Listener; import org.bukkit.event.block.Action; import org.bukkit.event.player.PlayerInteractEvent; import org.bukkit.inventory.ItemStack; import org.bukkit.plugin.java.JavaPlugin; import org.bukkit.potion.PotionEffect; import org.bukkit.potion.PotionEffectType; public class Main extends JavaPlugin implements Listener { public void onEnable() { Bukkit.getServer().getPluginManager().registerEvents(this, this); } @EventHandler(priority = EventPriority.HIGHEST) public void FastSoup(PlayerInteractEvent e){ Player p = e.getPlayer(); //Getting the instance of the player if(e.getItem().isSimilar(new ItemStack(Material.MUSHROOM_SOUP))) { if ((e.getAction().equals(Action.RIGHT_CLICK_AIR) || (e.getAction().equals(Action.RIGHT_CLICK_BLOCK) ||e.getAction().equals(Action.LEFT_CLICK_AIR) || (e.getAction().equals(Action.LEFT_CLICK_BLOCK))))) { //Checking if they rightclicked air or (||) Rich clicked a block p.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, 70, 2)); p.playSound(p.getLocation(), Sound.BLOCK_SNOW_BREAK, 10, 10); p.getInventory().setItemInHand(null); p.updateInventory(); } } } } Code (Text): : Could not pass event PlayerInteractEvent to SoupRegen v1.0 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:228) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:195) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:191) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1200) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.PacketPlayInArmAnimation.a(PacketPlayInArmAnimation.java:18) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.PacketPlayInArmAnimation.a(PacketPlayInArmAnimation.java:1) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_161] at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_161] at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] at java.lang.Thread.run(Unknown Source) [?:1.8.0_161] Caused by: java.lang.NoSuchFieldError: BLOCK_SNOW_BREAK at com.soup.plugin.Main.FastSoup(Main.java:36) ~[?:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_161] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_161] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_161] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_161] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.8.jar:git-Spigot-21fe707-e1ebe52] ... 18 more