This show up when i start my minecraft_server.jar

 

 

[iNFO] Starting minecraft server version 1.5.2

[WARNING] To start the server with more ram, launch it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar"

[sEVERE] Encountered an unexpected exception NoClassDefFoundError

java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiOptions

at java.lang.Class.getDeclaredMethods0(Native Method)

at java.lang.Class.privateGetDeclaredMethods(Unknown Source)

at java.lang.Class.getDeclaredMethods(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.gatherAnnotations(FMLModContainer.java:319)

at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:464)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:192)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:172)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:103)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:504)

at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:85)

at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:350)

at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:66)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:356)

at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)

Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiOptions

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:238)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

... 32 more

Caused by: java.lang.NullPointerException

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:227)

... 34 more

[sEVERE] This crash report has been saved to: C:\Users\aquwae\Desktop\MC Server\.\crash-reports\crash-2013-06-15_12.59.26-server.txt

 

 

 

Wrong section, post in the support : www.minecraftforge.net/forum/index.php/board,15.0.html

java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiOptions

You have install a client side mod, it can't work in smp, this mod is probably GUI-api, remove it

And run your server with a batch script (.bat on windows, .sh on linux)

java -Xmx1024M -Xms1024M -jar minecraft_server.jar

Sorry for wrong section =D

I'm newbie here

thanks for your reply