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Connection Lost: Cannot invoke "net.minecraft.nbt.CompoundTag.m_128459_(String)"


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Hello everyone,

I'm struggling with a weird issue, I'm trying to make a server pack for a new modpack and sometime I can join the server but got immediately disconnected with the message below:

Quote

Connection Lost

Internal Exception: java.lang.NullPointerException: Cannot invoke "net.minecraft.nbt.CompoundTag.m_128459_(String)" because "nbt" is null

I've seen seen other posts with the same error but nobody mention how they fix it (if they really fixed it).

 

Issue:

Here is the weird part, I have two scenarios occuring :

  1. I start my client, join the server, everything is fine. I can disconnect/reconnect to the server. It works.
  2. I start my client, join the server, get disconnected with the message above. If I try to reconnect, I will always get the same error. I must restart the client and hope this time it will works.

 

Additional informations:

I have tried with Forge 43.2.0, 43.3.0 (stable) and 43.3.5 (latest) on both server and client with the same results. The server pack is created using ServerPackCreator.
There is no problem in single player mode.
I can't determine if this could be a mod or a Forge issue.

I suspect there is somewhere an unstable loading order that could explain that problem.
I can't find anything of interest in the server and client debug.log (or I don't know what to look for).
 

Logs:

Client (debug.log): https://mclo.gs/4jf8lz7
Server (debug.log): https://mclo.gs/aT3hgEG


Any help or hint to find the culprit appreciated .
Thanks for reading

Edited by DrSpuick
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