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Server Not Running Properly (Need Help)

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I have downloaded the latest server and client but when I start up the server using the launcher.bat file that was in included in the server it comes up with a list of errors;

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20:30:10 [iNFO] Starting minecraft server version 1.2.5

20:30:10 [iNFO] Attempting early MinecraftForge initialization

20:30:10 [iNFO] Completed early MinecraftForge initialization

20:30:10 [iNFO] Forge Mod Loader version for Minecraft 1.2.5 loading

20:30:10 [iNFO] Loading mods from C:\Users\Leigh\Desktop\Tekkit\mods

20:30:12 [WARNING] Failed to load mod class net/minecraft/server/mod_NetherOres.

class in C:\Users\Leigh\Desktop\Tekkit\mods\mod_NetherOres.jar

20:30:12 [sEVERE] Zip file mod_NetherOres.jar failed to read properly

20:30:12 [iNFO] File mod_NetherOres.jar contained no mods

20:30:12 [iNFO] Directory weaponmod contained no mods

20:30:12 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar

is located in your mods directory

20:30:12 [sEVERE] cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.Loade

rException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_Net

herOres : Unsupported major.minor version 51.0

20:30:12 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:436)

20:30:12 [sEVERE] at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

20:30:12 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBuk


20:30:12 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftSe


20:30:12 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftSer


20:30:12 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(Sour


20:30:12 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.Unsu

pportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported majo

r.minor version 51.0

20:30:12 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:5


20:30:12 [sEVERE] at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.jav


20:30:12 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:419)

20:30:12 [sEVERE] ... 5 more

20:30:12 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecra

ft/server/mod_NetherOres : Unsupported major.minor version 51.0

20:30:12 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method)

20:30:12 [sEVERE] at java.lang.ClassLoader.defineClassCond(Unknown Source)

20:30:12 [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source)

20:30:12 [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown S


20:30:12 [sEVERE] at java.net.URLClassLoader.defineClass(Unknown Source)

20:30:12 [sEVERE] at java.net.URLClassLoader.access$000(Unknown Source)

20:30:12 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source)

20:30:12 [sEVERE] at java.security.AccessController.doPrivileged(Native Me


20:30:12 [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source)

20:30:12 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

20:30:12 [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown So


20:30:12 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

20:30:12 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

20:30:12 [sEVERE] at java.lang.Class.forName0(Native Method)

20:30:12 [sEVERE] at java.lang.Class.forName(Unknown Source)

20:30:12 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:4


20:30:12 [sEVERE] ... 7 more

20:30:12 [sEVERE] Unexpected exception

cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.l

ang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsuppor

ted major.minor version 51.0

at cpw.mods.fml.common.Loader.load(Loader.java:436)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:


at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersio

nError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51


at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527)

at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

at cpw.mods.fml.common.Loader.load(Loader.java:419)

... 5 more

Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_Neth

erOres : 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 java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

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 cpw.mods.fml.common.Loader.loadModClass(Loader.java:494)

... 7 more

BUT...... when I start up the .jar file that also comes with the pack, it runs fine but with no command prompt opening up. What I want to know is if there is anyone who can help me set up a server with command prompt or if the .jar launcher is fine to use (the java file is the equivalent of the .craftbukkit file on a regular server, on ordinary minecraft the .jar. the name of the .jar is called Tekkit)

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Why create two threads for the same issue? The 1st one you started here:


Was just fine.

dragonseth07 is being helpful. He's trying to educate you in how to properly not annoy the piss out of people on the forums so someone will actually take the time to help you with your actual error.

And yes, error = bug. From now on, post your errors related to Tekkit in the bug section.

I had the same error last night when trying to run my server from my local machine for testing. -snip- Do what Torezu suggested below...

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1. Do NOT spam threads. You already had a thread about this. There is no reason to make another.

2. Post this in the bug forum.

This is borderline backseat modding. Make suggestions all you want, but leave the commands to the mods please.

Why post if it is not helpful and it is not a bug because its an error!

He was saying not to post it twice, which is good advice. Bugs, errors, whatever, all go in the Bug Boards. It's just a name. Also, use the search bar next time for the netherOres error - I see 1-2 of these a day, I'd guess.

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