So I got my mod finished and it works for my client load-up: great. But then I launch the server and I get this ugly error and it involves the server loading client-sided only things (at least I think)

 

Here is the error:

2013-01-27 14:12:35 [iNFO] [sTDERR] java.lang.NoClassDefFoundError: net/minecraft/client/renderer/entity/Render

2013-01-27 14:12:35 [iNFO] [sTDERR] at java.lang.Class.forName0(Native Method)

2013-01-27 14:12:35 [iNFO] [sTDERR] at java.lang.Class.forName(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:416)

2013-01-27 14:12:35 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

2013-01-27 14:12:35 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at java.lang.reflect.Method.invoke(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventBus.post(EventBus.java:268)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:140)

2013-01-27 14:12:35 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

2013-01-27 14:12:35 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at java.lang.reflect.Method.invoke(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

2013-01-27 14:12:35 [iNFO] [sTDERR] at com.google.common.eventbus.EventBus.post(EventBus.java:268)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:83)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.common.Loader.loadMods(Loader.java:479)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:86)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:345)

2013-01-27 14:12:35 [iNFO] [sTDERR] at net.minecraft.server.dedicated.DedicatedServer.startServer(DedicatedServer.java:64)

2013-01-27 14:12:35 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)

2013-01-27 14:12:35 [iNFO] [sTDERR] at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)

2013-01-27 14:12:35 [iNFO] [sTDERR] Caused by: java.lang.ClassNotFoundException: net.minecraft.client.renderer.entity.Render

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:185)

2013-01-27 14:12:35 [iNFO] [sTDERR] at java.lang.ClassLoader.loadClass(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] at java.lang.ClassLoader.loadClass(Unknown Source)

2013-01-27 14:12:35 [iNFO] [sTDERR] ... 29 more

2013-01-27 14:12:35 [iNFO] [sTDERR] Caused by: java.lang.RuntimeException: Attempted to load class net/minecraft/client/renderer/entity/Render for invalid side SERVER

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:38)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:228)

2013-01-27 14:12:35 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:173)

2013-01-27 14:12:35 [iNFO] [sTDERR] ... 31 more

2013-01-27 14:12:35 [sEVERE] [Minecraft] Encountered an unexpected exception NoClassDefFoundError

java.lang.NoClassDefFoundError: net/minecraft/client/renderer/entity/Render

at java.lang.Class.forName0(Native Method)

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

at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:416)

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:140)

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:83)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:479)

at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:86)

at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:345)

at net.minecraft.server.dedicated.DedicatedServer.startServer(DedicatedServer.java:64)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)

at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)

Caused by: java.lang.ClassNotFoundException: net.minecraft.client.renderer.entity.Render

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:185)

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

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

... 29 more

Caused by: java.lang.RuntimeException: Attempted to load class net/minecraft/client/renderer/entity/Render for invalid side SERVER

at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:38)

at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:228)

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:173)

... 31 more

 

can anyone tell me what i should do, or if I need to add code to my question. Any help is appreciated!

Register the mob rendering in a client proxy, servers don't render

Ah ok, I was rendering the entities in my main class, not in the client proxy, that makes sense. Thank you!