[Weird] Uhamm very weird...

So I was making a plugin that requires WorldGuard, and I did added

Code:java

 private WorldGuardPlugin getWorldGuard() {
Plugin plugin = Bukkit.getServer().getPluginManager().getPlugin("WorldGuard");
 
if (plugin == null || !(plugin instanceof WorldGuardPlugin)) {
return null;
}
 
return (WorldGuardPlugin) plugin;
}
 

And imported also set it as a directory like I set craftbukkit.jar as a directory in Eclipse. When even I run the server the server will out put this error message:

Code:

[20:42:45] [Server thread/ERROR]: Could not load 'plugins\Shield.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/sk89q/worldguard/protection/flags/Flag
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugins(CraftServer.java:355) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.reload(CraftServer.java:797) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.Bukkit.reload(Bukkit.java:288) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:701) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchServerCommand(CraftServer.java:688) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.DedicatedServer.aB(DedicatedServer.java:296) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:261) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
Caused by: java.lang.NoClassDefFoundError: com/sk89q/worldguard/protection/flags/Flag
at java.lang.Class.forName0(Native Method) ~[?:1.7.0_45]
at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_45]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:40) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:127) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
... 14 more
Caused by: java.lang.ClassNotFoundException: com.sk89q.worldguard.protection.flags.Flag
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_45]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_45]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_45]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.7.0_45]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:77) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_45]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_45]
at java.lang.Class.forName0(Native Method) ~[?:1.7.0_45]
at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_45]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:40) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:127) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
... 14 more

If you know what is wrong, please tell me, Thanks!

 

**Not tested**

Code:java

 private WorldGuardPlugin getWorldGuard() {
Plugin plugin = Bukkit.getServer().getPluginManager().getPlugin("WorldGuard");
 
if (plugin == null || !(plugin instanceof WorldGuardPlugin)) {
return null;
}
 
return (WorldGuardPlugin) plugin;
}
 

to

Code:java

private WorldGuardPlugin getWorldGuard() {
Plugin plugin = Bukkit.getServer().getPluginManager().getPlugin("WorldGuard");
 
if (plugin == null || !plugin instanceof WorldGuardPlugin) {
return null;
}
 
return (WorldGuardPlugin) plugin;
}

Caused by: java.lang.ClassNotFoundException: com.sk89q.worldguard.protection.flags.Flag

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

SleepyDog That code won't even compile.

Cheesepro Make sure you export all classes to your jar.

 

teej107 SleepyDog OHh thanks I found out that I forgot to add the dependency.... in the plugin.yml.....