Solved Cant Load plugins

i am running my server the first time and here is my error




ava:184)
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.loadPlugins(CraftServer.java:239)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.<init>(CraftServer.java:217)
at net.minecraft.server.v1_4_R1.PlayerList.<init>(PlayerList.java:55)
at net.minecraft.server.v1_4_R1.DedicatedPlayerList.<init>(SourceFile:11)
at net.minecraft.server.v1_4_R1.DedicatedServer.init(DedicatedServer.java:104)
at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:399)
at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:676)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
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(ClassLoader.java:317)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173)
... 9 more
07:59:35 [SEVERE] Could not load 'plugins/EssentialsSpawn.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: Essentials
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.loadPlugins(CraftServer.java:239)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.<init>(CraftServer.java:217)
at net.minecraft.server.v1_4_R1.PlayerList.<init>(PlayerList.java:55)
at net.minecraft.server.v1_4_R1.DedicatedPlayerList.<init>(SourceFile:11)
at net.minecraft.server.v1_4_R1.DedicatedServer.init(DedicatedServer.java:104)
at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:399)
at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
07:59:35 [SEVERE] Could not load 'plugins/EssentialsChat.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: Essentials
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.loadPlugins(CraftServer.java:239)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.<init>(CraftServer.java:217)
at net.minecraft.server.v1_4_R1.PlayerList.<init>(PlayerList.java:55)
at net.minecraft.server.v1_4_R1.DedicatedPlayerList.<init>(SourceFile:11)
at net.minecraft.server.v1_4_R1.DedicatedServer.init(DedicatedServer.java:104)
at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:399)
at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:8

 

UnsupportedClassVersionError is usually a Java version mismatch error. Just update your server to Java 1.6 or 1.7 and you should be fine.

 

For EssentialsSpawn to work, you need Essentials.

 

It could mean your java is out of date. It could also be that the plugin itself is out of date.

 

1. make sure your java version is 6
2. make sure your using the recommended build for bukkit
3. make sure to update all your plugins to the 1.4.7 recommended build
4. Make sure you also have Essentials not just its extras
5. your server is optimized and should work

 

i have the recommended build and the plugins are updated and i have the essentials.jar

i do have essentials i think my plugins cant load essentials.jar

for every one i am using a mac and i have 32 java



J2se 5.0 32-bit
Java SE 64-bit
J2se 5.0 64-bit
J2se 1.4.2 32-bit

Where could i find the download?

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

 

Java website. http://java.com/en/

JRE6 or JRE7 essentially installs 1.6 and 1.7 respectively.

For your server to work, you WILL need to install one of those.

 

javascripterror I Am using a 10.5.8

 

I believe for Macs, you need to install Java from Apple and then change your "Java" selection to point to the 1.6 version. I don't have a Mac so I can't tell you exactly where that selection is though.

Edit - Sorry, I should have said Java 6.0 since you are using a Mac.

 

Oh, you're on a Mac, did not see that. You will need at least Version 10.6 or 10.7 to run Bukkit.

Try downloading it from the Apple website, and not from the Java website.

 

i just figure i out i went to my java setting and i put java 6 on top and it works! thank you

 

Glad you got it working! I hope your server succeeds. We need a lot more good servers on here

 

Here.

 

PapiDimmi
OP already solved the problem, please look at the whole thread before you just burst in and try to solve something solved.

 

DOUBLE RAINSOLVED!

 

xD