How to import exist world into pumpkin?

[chenxuuu]

I try to copy world file to world folder, but it show errors and seems replace my world files

[ERROR] Failed to load chunk at Vector2 { x: -1, z: -1 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: -1, z: 0 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: -1, z: 1 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: 0, z: -1 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: 1, z: -1 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: 0, z: 0 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: 0, z: 1 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: 1, z: 0 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)
[ERROR] Failed to load chunk at Vector2 { x: 1, z: 1 }: Failed to parse chunk from bytes: Failed reading chunk status Serde error: missing field `Status` (regenerating)

this world can be loaded in minecraft 1.21.6 single player mode.
maybe my world file is too old? I transform from 1.12 to 1.21 by Amulet tool.

so, is this able to import exist world?

old3w.zip example world

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update:

I follow this reply convert world, error logs still show, pumpkin generate new chunks replace my exist chunks

my steps:

• copy world folder to Minecraft save folder
• use Optimize World in Minecraft 1.21.7
• enter world in Minecraft single player mode, check and confirm world is ok (position 0 69 0)
• copy world files to pumpkin world folder (include level.dat)
• run pumpkin
• join in pumpkin server, but world looks different with before
• stop pumpkin server
• copy world files from pumpkin to Minecraft save folder
• enter world in Minecraft single player mode, world is really different with before
• check mca file, they are replaced

pumpkin version:
SHA-1: 5dac015
build with cargo build --release

[Snowiiii]

can you please also use the level.dat file from the same world as your chunks are

[Snowiiii]

I assume your Chunks are outdated, Pumpkin currently only supports the latest Chunk Format. Also you can just "Update" your Chunks in-game and don't have to use any tools, Try to Start Minecraft 1.21.7 and Optimize your World

[chenxuuu]

oh thanks, I'll try this

[chenxuuu]

It's more strange now. no error shows, but look like pumpkin generate new chunks replace exist chunks...

I upload whole world folder(old version): file

my steps:

• copy world folder to Minecraft save folder
• use Optimize World in minecraft
• enter world in Minecraft single player mode, check and confirm world is ok (position 0 69 0)
• copy world files to pumpkin world folder
• run pumpkin
• join in pumpkin server, but world looks different with before
• stop pumpkin server
• copy world files from pumpkin to Minecraft save folder
• enter world in Minecraft single player mode, world is really different with before

pumpkin version:
SHA-1: 5dac015
build with cargo build --release

Minecraft 1.21.7

[Snowiiii]

It's more strange now. no error shows, but look like pumpkin generate new chunks replace exist chunks...

I upload whole world folder(old version): file

my steps:

* copy world folder to Minecraft save folder

* use `Optimize World` in minecraft

* enter world in Minecraft single player mode, check and confirm world is ok (position 0 69 0)

* copy world files to pumpkin world folder

* run pumpkin

* join in pumpkin server, but world looks different with before

* stop pumpkin server

* copy world files from pumpkin to Minecraft save folder

* enter world in Minecraft single player mode, world is really different with before

pumpkin version: SHA-1: 5dac015 build with cargo build --release

Minecraft 1.21.7

I assume its because you did not use your level.dat this causes the World to use a different Seed resulting in different Chunks

[chenxuuu]

level.dat is in world folder
I remove pumpkin/worldfolder, then copy all files to pumpkin/world, I think pumpkin/world/level.dat is exist there.

I will try in different ways

[chenxuuu]

I made a mistake
after Optimize World, the error logs still there, not disappear
so it's still world file compatible problem

[Snowiiii]

also confirm that you don't overwrite the seed in the config

[chenxuuu]

looks like it crash here, then it regenerate new chunk overwite my exist chunk
more research to do

[chenxuuu]

I figout it, because of nbt lib not fully support data in chunks

[chenxuuu]

I confirm this
create a new world in minecraft 1.21.7, copy to pumpkin folder, also show these errors

[Snowiiii]

Does this still happen?

[chenxuuu]

i try latest code 314547e
different output but same result.
it replace my exist world file