"Server attempted to load chunk saved with newer version of minecraft! 2730 > 2586"

[doxifieq]

Minehut decided to auto update my server to 1.17.1 without my knowledge

Since it's now 1.17.1 a 1.17.1 player joined the server and started loading chunks

Which means the server is now full of 1.17.1 chunks in a server meant for 1.16.5

So since it's meant for 1.16.5 I set it back to 1.16.5. So i tried to start the server but it just didn't start. So i checked the logs and I'm greeted with this error message:

https://pastebin.com/raw/g4t9gV7r (scroll to bottom)

 

In short:

Minehut auto updated to 1.17.1

Player joined with 1.17.1

Player loaded chunks with 1.17.1

Player left the game

I set the version to 1.16.5

I start the server

Server doesn't start because 1.17.1 chunks exist

I cry

Edited October 20, 2021 by iProSpark

[MrTibo]

You can't downgrade 1.17 worlds, they will simply corrupt and reset.

Also, only versions with the (latest) version selected updated.

[doxifieq]

9 minutes ago, MrTibo said:

You can't downgrade 1.17 worlds, they will simply corrupt and reset.

Also, only versions with the (latest) version selected updated.

Server was set to 1.16.5

No idea why it auto updated then

[MrTibo]

52 minutes ago, iProSpark said:

Server was set to 1.16.5

No idea why it auto updated then

That must have been 1.16.5 (Latest)

[_Tarna_]

2 hours ago, iProSpark said:

Server was set to 1.16.5

No idea why it auto updated then

Your server was probably set to "latest" like MrTibo said and before the update, the latest was 1.16.5 but they updated it to 1.17.1. If you don't want automatic updates, just set it to a specific version instead.

But to fix your issue, you can use something like chunker.app to downgrade the version of your world.