
Version 1.20.1 Failure to connect to the server on the client only when there are NPCs in the area with the error Internal Exception: io.netty.handler.codec.DecoderException: java.lang.ArrayIndexOutOfBoundsException
Lusserr opened this issue ยท 5 comments
I have been trying to solve it in different ways and it has even given similar errors with different identifiers, for example
Internal Exception: io.netty.handler.codec.DecoderException: Unknown serializer type
have also tried to update the versions and if they do not match the server, I am quite desperate I really need this mod
Client:side
https://mclo.gs/6hSDffr
Server:side
https://mclo.gs/CvAgJXd
Please provide a full client log from the start of the game up to the crash.
The following section is particularly important:
[13:31:43] [modloading-worker-0/INFO]: ? Register Easy NPC Entity Data Serializers ...
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer ActionEventSet with id 34
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer CustomAttributes with id 35
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer DialogDataSet with id 36
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer DisplayAttributeSet with id 37
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer EntityAttributes with id 38
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer MerchantOffers with id 39
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer ModelPose with id 40
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer ObjectiveDataSet with id 41
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer CustomPosition with id 42
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer Profession with id 43
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer RenderDataSet with id 44
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer CustomRotation with id 45
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer CustomScale with id 46
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer SkinDataEntry with id 47
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer SoundDataSet with id 48
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer HashSet:UUID with id 49
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer HashSet:String with id 50
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer TradingDataSet with id 51
[13:31:43] [modloading-worker-0/INFO]: Registered entity data serializer UUID with id 52
If the IDs do not match between the client and the server, such as:
Registered entity data serializer ActionEventSet with id 34
on the client, butRegistered entity data serializer ActionEventSet with id 35
on the server,
this will likely cause decoder issues.
In most cases, this happens due to other mods registering serializers in a different order on the server and/or client. Identifying the conflicting mod(s) may help resolve the issue.
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