I'm hoping this is an easy one. The goal is to make some simple edits to WorldGuard to add a new region flag. I am using Netbeans so I'm guessing that there's a problem with the setup. Perhaps the library settings are goofed up? You may notice that half way down there is a mention of BlockVector not defined. I have added WorldEdit, Permissions, and Bukkit to my library as JARs which clears all reference errors in Netbeans, as well as allowing for a completed compile. I have gotten the exact same error using my edited source as well as just locally compiled source taken from SK's site. I am using the latest verson of Bukkit, WorldEdit, Permissions, and WorldGuard as of this writing. I don't believe that this version of WorldGuard is the problem, since the compiled download works fine. Beyond that, according to my IDE the BlockVector class is alive and well, exactly where it's supposed to be. This only happens when compile the code on my machine. Anyone else using Netbeans that might be able to point me in the right direction? I have been using Netbeans for a good while for PHP, but I'm new to Java. Code: 2011-01-23 18:06:03 [INFO] Starting minecraft server version Beta 1.2_01 2011-01-23 18:06:03 [INFO] Loading properties 2011-01-23 18:06:03 [INFO] Starting Minecraft server on *:25565 2011-01-23 18:06:03 [WARNING] **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE! 2011-01-23 18:06:03 [WARNING] The server will make no attempt to authenticate us ernames. Beware. 2011-01-23 18:06:03 [WARNING] While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any u sername they choose. 2011-01-23 18:06:03 [WARNING] To change this, set "online-mode" to "true" in the server.settings file. 2011-01-23 18:06:03 [INFO] Preparing level "world" 2011-01-23 18:06:03 [INFO] Preparing start region Preparing spawn area: 12% Preparing spawn area: 40% Preparing spawn area: 56% Preparing spawn area: 81% Preparing spawn area: 97% 2011-01-23 18:06:08 [INFO] [General] version [1.9] (Yakuza) loaded 2011-01-23 18:06:08 [INFO] [Permissions] version [1.6] (Handler) loaded 2011-01-23 18:06:08 [INFO] [WarpGate] version [1.4] (Polarized) loaded 2011-01-23 18:06:08 [INFO] WorldEdit 2.14.2 loaded. 2011-01-23 18:06:08 [INFO] WorldEdit: Permissions plugin detected! Using Permiss ions plugin for permissions. Jan 23, 2011 6:06:08 PM org.bukkit.plugin.SimplePluginManager loadPlugins SEVERE: Could not load plugins\WorldGuard.jar in plugins: null org.bukkit.plugin.InvalidPluginException at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:83) at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:117) at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:82) at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:43) at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:153) at net.minecraft.server.MinecraftServer.c(MinecraftServer.java:140) at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:104) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:177) at net.minecraft.server.ThreadServerApplication.run(SourceFile:512) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:81) ... 8 more Caused by: java.lang.NoClassDefFoundError: com/sk89q/worldedit/BlockVector at com.sk89q.worldguard.bukkit.WorldGuardPlugin.<init>(WorldGuardPlugin.java:69) ... 13 more Caused by: java.lang.ClassNotFoundException: com.sk89q.worldedit.BlockVector at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 14 more BorderGuard version 2.0 is enabled! GuestBook Ultimate version 1.12 Herp|Derp is enabled! done. GuestBook: Trying to load GuestBook and settings...done. GuestBook Ultimate version 1.12 Herp|Derp is enabled! Loaded HotSwap version 3 by Zenexer. 2011-01-23 18:06:08 [INFO] [Interesting Places] Loaded 2011-01-23 18:06:08 [INFO] [Noon] (based on code by Feverdream) loaded. 2011-01-23 18:06:08 [INFO] [rTriggers] Loaded: Version 0.3_3 2011-01-23 18:06:08 [INFO] [WarpGate] iConomy is not loaded. Turning iConomy sup port off. 2011-01-23 18:06:08 [INFO] Done! For help, type "help" or "?" Thanks in advance  I have determined that the problem is likely with the classpath in the manifest (Netbeans isn't adding it) so the plugin isn't able to call packages from WorldEdit. BlockVector is simply the first one in the list that WorldGuard is looking for and cannot find. Still trying to fix, however. Fixed. Finally got classpath up in the manifest and system checks good. EDIT by Moderator: merged posts, please use the edit button instead of double posting.