Hello. I just created a plugin for someone, and when I tried to run it (Just the run.bat, craftbukkit.jar and the plugin) it did work. When the other person tried the exact same thing, the plugin wouldn't load, even after trying to run it without any other plugins. Does somebody know what the problem may be? And could someone also download the file below and check if you can run it? Plugin download link: <Edit by Moderator: Redacted mediafire url>
2013-04-10 18:10:54 [SEVERE] Could not load 'plugins\PvPCommand.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/Reteckz/pvpcommand/pvpcommand : Unsupported major.minor version 51.0 at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184) at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305) at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230) at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:239) at org.bukkit.craftbukkit.v1_5_R2.CraftServer.<init>(CraftServer.java:217) at net.minecraft.server.v1_5_R2.PlayerList.<init>(PlayerList.java:55) at net.minecraft.server.v1_5_R2.DedicatedPlayerList.<init>(SourceFile:11) at net.minecraft.server.v1_5_R2.DedicatedServer.init(DedicatedServer.java:105) at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:381) at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573) Caused by: java.lang.UnsupportedClassVersionError: me/Reteckz/pvpcommand/pvpcommand : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) 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.findClass0(PluginClassLoader.java:80) at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173) ... 9 more Nvm fixed. The other person had an outdated JDK EDIT by Moderator: merged posts, please use the edit button instead of double posting.
