It's a my compilation error or ... else ?
java.lang.TypeNotPresentException: Type ee3.common.core.handlers.PacketHandler not present
at sun.reflect.annotation.TypeNotPresentExceptionProxy.generateException(Unknown Source)
at sun.reflect.annotation.AnnotationInvocationHandler.invoke(Unknown Source)
at $Proxy15.packetHandler(Unknown Source)
at cpw.mods.fml.common.network.NetworkModHandler.(NetworkModHandler.java:114)
at cpw.mods.fml.common.network.FMLNetworkHandler.registerNetworkMod(FMLNetworkHandler.java:251)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:415)
at sun.reflect.GeneratedMethodAccessor5.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:478)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:151)
at net.minecraft.client.Minecraft.a(Minecraft.java:424)
at net.minecraft.client.Minecraft.run(Minecraft.java:756)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: ee3.common.core.handlers.PacketHandler
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:141)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(Unknown Source)
at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Unknown Source)
at sun.reflect.generics.tree.ClassTypeSignature.accept(Unknown Source)
at sun.reflect.annotation.AnnotationParser.parseSig(Unknown Source)
at sun.reflect.annotation.AnnotationParser.parseClassValue(Unknown Source)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(Unknown Source)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(Unknown Source)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(Unknown Source)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(Unknown Source)
at java.lang.Class.initAnnotationsIfNecessary(Unknown Source)
at java.lang.Class.getAnnotation(Unknown Source)
at cpw.mods.fml.common.network.NetworkModHandler.(NetworkModHandler.java:55)
... 26 more
Caused by: java.lang.NullPointerException
at org.objectweb.asm.ClassReader.(Unknown Source)
at net.minecraftforge.transformers.EventTransformer.transform(EventTransformer.java:29)
at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:178)
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:133)
... 42 more

i try to recompile , i try to downgrade forge but it doesn't work. the last commit i use is "First steps on allowing the stone overlay to be in different corners of the screen" and i get the same error sorry for my english but i'm italian

@pupaxxo Then, I'm guessing that pahimar's latest code isn't finished yet, and it will break when run. Did you have any compile errors?

@pahimar Can you confirm this?

It seems like your missing the packethandler class from your compile, check to make sure it's there

@50Wliu I just tried, and it's working perfectly.

what forge version are you using ?

@Pyker I was just guessing, since I can't compile it right now :<

@pupaxxo Are you sure that you're following the compile instructions exactly?

ok i resolved i try to setup MCP with forge 6.4.1.426 now work.

Good to know :)

Huh. Try to recompile (sync first), and look for error messages, then post them here (if any). If not, downgrade Forge/type the last commit that you have in Github when you got this error.