2012-03-04 18:51:50 [SEVERE] Could not load 'plugins/Multiverse-Portals-2.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/pneumaticraft/commandhandler/multiverse/Command
 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:150)
 at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:287)
 at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:211)
 at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:207)
 at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:183)
 at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:53)
 at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:156)
 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:425)
 at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
Caused by: java.lang.NoClassDefFoundError: com/pneumaticraft/commandhandler/multiverse/Command
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:264)
 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:139)
 ... 8 more
Caused by: java.lang.ClassNotFoundException: com.pneumaticraft.commandhandler.multiverse.Command
 at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
 at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
 at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
 ... 11 more