hey guys,

I'm trying to send a packet from client to server but i cant get it to work

So, thats my code

 

public static SimpleNetworkWrapper network; 

@EventHandler
public static void preInit(FMLPreInitializationEvent event) {
	network= NetworkRegistry.INSTANCE.newSimpleChannel(modid);
	network.registerMessage(MessageHandler.class, Message.class, 0, Side.SERVER); 
}

public class MessageHandler implements IMessageHandler<Message, IMessage> {

    @Override
    public IMessage onMessage(Message message, MessageContext ctx) {
        System.out.println(message.x);
        return null;
    }

}

public class Message implements IMessage{
    public int x;

    public Message() {}

    public Message(int a) {
        this.x = a;
    }

    @Override
    public void toBytes(ByteBuf buf) {
        buf.writeInt(x);
    }

    @Override
    public void fromBytes(ByteBuf buf) {
        this.x= buf.readInt();
    }

}

 

It's crashing on startup

 

[15:40:50] [Client thread/ERROR] [FML]: Fatal errors were detected during the transition from PREINITIALIZATION to INITIALIZATION. Loading cannot continue

[15:40:50] [Client thread/ERROR] [FML]:

mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized

FML{7.2.116.1024} [Forge Mod Loader] (forgeSrc-1.7.2-10.12.0.1024.jar) Unloaded->Constructed->Pre-initialized

Forge{10.12.0.1024} [Minecraft Forge] (forgeSrc-1.7.2-10.12.0.1024.jar) Unloaded->Constructed->Pre-initialized

FM{ALPHA 1.0} [XY] (bin) Unloaded->Constructed->Errored

[15:40:50] [Client thread/ERROR] [FML]: The following problems were captured during this phase

[15:40:50] [Client thread/ERROR] [FML]: Caught exception from XY

java.lang.IllegalStateException: cannot determine the type of the type parameter 'REQ': class cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper

Your forge is ridiculously outdated. Update.

so i have to download the new forge or can i do it inside the gradlew? how do I keep my code?

just save the code to a different location, update, and then update the code as well.

alright working now, thanks ^^