Solved Need help! PlayerJoinEvent Error!

Hello, i was making a simple plugin. (Sorry for my bad English im Dutch)
it's an BarAPI, but when i run it i have a error.

Code:

[14:33:18 ERROR]: Could not pass event PlayerJoinEvent to BossBar v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:299) ~[spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:502) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:487) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.PlayerList.c(PlayerList.java:265) [spigo
t-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.PlayerList.a(PlayerList.java:152) [spigo
t-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.LoginListener.c(LoginListener.java:105)
[spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.LoginListener.a(LoginListener.java:43) [
spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:187
) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.ServerConnection.c(ServerConnection.java
:81) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:7
31) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:2
84) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:5
84) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:490) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
Caused by: java.lang.NoClassDefFoundError: me/confuser/barapi/BarAPI
        at me.dutchfragile.boss.Boss.onJoin(Boss.java:23) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0
_11]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0
_11]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.8.0_11]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_11]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:296) ~[spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        ... 14 more
Caused by: java.lang.ClassNotFoundException: me.confuser.barapi.BarAPI
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_11]
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_11]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_
11]
        at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_11]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:77) ~[spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:62) ~[spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_11]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_11]
        at me.dutchfragile.boss.Boss.onJoin(Boss.java:23) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0
_11]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0
_11]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.8.0_11]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_11]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:296) ~[spigot-1.7.9-R0.3-SNAPSHOT.jar:git-Spigot-1543]
        ... 14 more

This is the source:

Code:

package me.dutchfragile.boss;

import me.confuser.barapi.BarAPI;

import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class Boss extends JavaPlugin implements Listener {
   
    public void onEnable() {
        PluginManager pm = getServer().getPluginManager();
        pm.registerEvents(this, this);
    }
   
    @EventHandler
    public void onJoin(PlayerJoinEvent e) {
        Player p = (Player) e.getPlayer();
        BarAPI.setMessage(p, ChatColor.AQUA + "Welcome to the server" +  p.getPlayerListName());
    }

}

Greetz,

DutchFragile

 

@DutchFragile

BarAPI is not running on your server. Either it is not there or cannot load.

 

Wow, i was so dumb, barAPI was not running on my server, thanks for the help!

 

@DutchFragile I'm glad that your problem was solved. Please set the prefix to "Solved" under Thread Tools > Prefix > Solved.