Kiuseii

Okey, fixed it by rewriting my packet handler and writing it like you've done (ModMessages). Works without warnings now.

What was your issue ?

Sorry, forgot that the repo was private. It should be okey now

Hello, I'm getting Unknown custom packet identifier: argonauts:simple_channel but when i send the packet it works. After some search, the problem could be the symmetry of encoding and decoding but even after writing a simple buf.readInt() and buf.writeInt() i also get the message. Also, i'm sending an nbt with my packet. I've seen that it exist buf.writerIndex() but don't know how to correctly use it. (Show i just use index + 1 each time i had something, or should i use an other number ?) Could i add multiple data in one buffer ? I'm send that packet each tick when i refill the mana capability of the player. Here is the source of my packet : https://github.com/Ddasb/argonauts/blob/master/src/main/java/com/kiuseii/argonauts/network/packets/AttributesDataSyncS2CPacket.java Source of my capability : https://github.com/Ddasb/argonauts/blob/master/src/main/java/com/kiuseii/argonauts/capabilities/attributes/AttributesCapability.java My Packet handler : https://github.com/Ddasb/argonauts/blob/master/src/main/java/com/kiuseii/argonauts/network/PacketHandler.java Where i refill the mana : https://github.com/Ddasb/argonauts/blob/master/src/main/java/com/kiuseii/argonauts/events/ModEvents.java Thanks for the help provided