Any ideas what would cause me to be able to craft my mod's items in single player but not multi? I know this has happened before to other mods I've used, but I forgot what fixed them. I've searched for a while but decided this would be more efficient.

 

Ok fail on my part. I didn't have forge downloaded. Although now I get this

Encountered an unexpected exception NoSuchMethodError

java.lang.NoSuchMethodError: ModLoader.getMinecraftInstance()Lnet/minecraft/client/Minecraft;

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

	at mod_BlockBucks.load(mod_BlockBucks.java:23)

	at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:549)

	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.initializeMods(Loader.java:640)

	at cpw.mods.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:88)

	at cpw.mods.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:357)

	at ft.b(DedicatedServer.java:111)

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

	at ep.run(SourceFile:539)


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You need to port to the new FML methods.

put your MinecraftForgeClient.preloadTextures

 

in your clientproxy register method