Solved Citizens problem

I'm having this problem while using CitizensApi:

Code:

            if(cmd.getName().equalsIgnoreCase("disguise")) {
                        NPCRegistry registry = CitizensAPI.getNPCRegistry();
                        NPC npc = registry.createNPC(EntityType.PLAYER, "NpcTest");
                        npc.spawn(p.getLocation());
                       }

org.bukkit.command.CommandException: Unhandled exception executing command 'testspawn' in plugin PluginTest v5.2.13
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[cra
ftbukkit.jar:git-Spigot-1642]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
1) ~[craftbukkit.jar:git-Spigot-1642]
at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServe
r.java:767) ~[craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerCon
nection.java:1043) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java
:880) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat
.java:65) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:186
) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java
:81) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:7
34) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:2
89) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:5
84) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java
:490) [craftbukkit.jar:git-Spigot-1642]
at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit.jar:git-Spigot-1642]
Caused by: java.lang.NoClassDefFoundError: net/citizensnpcs/api/CitizensAPI
at me.contextcreator.tests.Main.onCommand(Main.java:164) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[cra
ftbukkit.jar:git-Spigot-1642]
... 13 more
Caused by: java.lang.ClassNotFoundException: net.citizensnpcs.api.CitizensAPI
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_31]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_31]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_
31]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_31]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:101) ~[craftbukkit.jar:git-Spigot-1642]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:86) ~[craftbukkit.jar:git-Spigot-1642]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]
at me.contextcreator.tests.Main.onCommand(Main.java:164) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[cra
ftbukkit.jar:git-Spigot-1642]
... 13 more
>

 

@WesJD That is not relevant.

@ContextCreator You did not add the Citizens implementation to your server's plugins.

 

@Totom3 My bad.

 

I actually do, I'mma try downloading diff. versions ^^.

Thanks for answering @Totom3 & @WesJD.

 

@ContextCreator If you did yet the class cannot be found then perhaps Citizens failed to load? Check the logs. You can make sure Citizens is enabled in-game by testing it's commands.

Also did you make your plugin depend on it (in plugin.yml)?

 

Yes i did, And now it actually works. For some reason everything was perfect, I just created a new server by moving my start.bat & Craftbukkit/Spigot.jar file into a new folder and worked. Thanks