java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
        at java.lang.Class.getDeclaredMethods(Class.java:1791)
        at cpw.mods.fml.common.FMLModContainer.gatherAnnotations(FMLModContainer.java:324)
        at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:512)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        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:313)
        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:194)
        at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        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:313)
        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:105)
        at cpw.mods.fml.common.Loader.loadMods(Loader.java:510)
        at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:86)
        at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:350)
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:69)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:443)
        at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:582)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:179)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
        ... 32 more
Caused by: java.lang.RuntimeException: Attempted to load class ats for invalid side SERVER
        at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50)
        at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:267)
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:165)
        ... 34 more