hi i finished all my code and when i tested for singleplayer it worked, then multiplayer it gave my a bunch of errors

[iNFO] Starting minecraft server version 1.3.2

[sEVERE] Encountered an unexpected exception LoaderException

cpw.mods.fml.common.LoaderException: java.lang.reflect.InvocationTargetException

at cpw.mods.fml.common.LoadController.transition(LoadController.java:102)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:461)

at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:80)

at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:352)

at net.minecraft.src.DedicatedServer.startServer(DedicatedServer.java:49)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:415)

at net.minecraft.src.ThreadServerApplication.run(ThreadServerApplication.java:17)

Caused by: java.lang.reflect.InvocationTargetException

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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:371)

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:69)

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

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:124)

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:69)

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

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:81)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:460)

... 5 more

Caused by: java.lang.NoSuchMethodError: net.minecraft.src.ModLoader.getMinecraftInstance()Lnet/minecraft/client/Minecraft;

at net.minecraftforge.client.MinecraftForgeClient.preloadTexture(MinecraftForgeClient.java:42)

at ConstructionCraft.ConstructionCraft.initConfig(ConstructionCraft.java:110)

... 31 more

[sEVERE] This crash report has been saved to: C:\Users\Michael\Desktop\Minecraft Modding\Emerald Armor And Tools Mod\Forge Code 1.3.2\jars\.\crash-reports\crash-2012-10-02_19.06.45-server.txt

 

Looks to me like you're trying to access stuff that only exists on the client from the server. You should use proxies to deal with stuff like that.

Thanks i will try adding them now