Can anyone tell me what this error means? I am running MC 1.5.2 with bukkit 1.5.2 and I am using dwarf forge 1.5.2, so why am I getting a version error? Code: 16:50:05 [INFO] This server is running CraftBukkit version git-Bukkit-1.5.2-R0.1-b2771jnks (MC: 1.5.2) (Implementing API version 1.5.2-R0.1) 16:50:05 [SEVERE] Could not load 'plugins\DwarfForge.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: org/simiancage/bukkit/DwarfForge/DwarfForge : 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_R3.CraftServer.loadPlugins(CraftServer.java:239) at org.bukkit.craftbukkit.v1_5_R3.CraftServer.<init>(CraftServer.java:217) at net.minecraft.server.v1_5_R3.PlayerList.<init>(PlayerList.java:55) at net.minecraft.server.v1_5_R3.DedicatedPlayerList.<init>(SourceFile:11) at net.minecraft.server.v1_5_R3.DedicatedServer.init(DedicatedServer.java:106) at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:382) at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573) Caused by: java.lang.UnsupportedClassVersionError: org/simiancage/bukkit/DwarfForge/DwarfForge : 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
That's what I thought too, but the guy in charge of it says it is, and it works for 1.5.2 on his server.
Are you sure about that? Because I have all sorts of Java, including 7, and still get that error. Ahhhhh! You -are- right. My launcher was using the jre6/bin/ folder, not jre7. THANKS!! EDIT by Moderator: merged posts, please use the edit button instead of double posting.