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Help with resource pack format

valesde_valley 12/30/25 10:08 pm history
5.2k
12/31/2025 9:54 am
Hi
I´m trying to update a resource pack to 1.21.10, but In the pack slection list I keep getting the message "Broken or incompatible" (This is where the "Made for an older version" message usually appears).

This is what I have in the pack.mcmeta file:

{
  "pack": {
    "pack_format": 69.0,
    "description": "§6Copper color shown on MC Live\n§eBy valesde_valley"
  }
}

I quicly searched in the wiki and it says that 69.0 is the format for 1.21.9 - 1.21.10.

Am I doing something wrong or has anything about resource packs changed in the last versions?
I´m able to load and use the pack but I want to understand why I´m getting that message and how I can fix it.

Thanks in advance.
Posted by
valesde_valley
Level 40 : Master Herobrine Hunter
38

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5

Cornbread_Alphanumeric
12/31/2025 12:51 am
She/They • Level 54 : Grandmaster Miner uwu
you've formatted the "pack_format" value wrong. it needs to be either an integer or an array of two integers. just get rid of the ".0" and it should work.
1
ScotsMiser
12/31/2025 12:23 am
Level 71 : Legendary Miner
The wiki includes this useful note:
This article is missing information about: Data pack format tables are several weeks out of date

Hippopotamoss curates "Are you sure you want to load this pack?" | A Guide on Updating Your Resource Packs which provides example pack.mcmeta s the last of which is for 1.21.8 as of this posting.
The version given there for supporting both 1.21.8 & lower versions appears functionally identical to quasia's example.


If that format doesn't work, I'd download a 1.21.10 pack, check that it works, then copy the pack.mcmeta format from it. (Making a record of the format for future reference.) [​Also please post the example here if this is needed.]
2
Hippopotamoss
12/31/2025 9:54 am
They/Them • Level 66 : High Grandmaster Blueberry Botanist
Just want to clarify that my guide does have two examples for 1.21.9 and above. One that just supports newer versions and one that supports 1.21.8 and below as well :)

It was written in an awkward way ("above 1.21.8") because 1.21.9 had not been announced then. So I've altered it to hopefully be a little clearer and state that they're for 1.21.9 and above
2
quasia
12/30/2025 10:47 pm
Level 21 : Expert Miner
i think you need supported_format value. try this

{
"pack": {
"pack_format": 34,
"supported_formats": [34, 69],
"min_format": [34, 0],
"max_format": [69, 0],
"description": "for 1.21 - 1.21.10"
}
}

hope this works
2
Cornbread_Alphanumeric
12/31/2025 1:00 am
She/They • Level 54 : Grandmaster Miner uwu
"supported_formats" is specifically for packs that A) support multiple game versions, and B) support game versions from 1.20.2 - 1.21.8. the field is not required to declare support for only one game version, nor is it used to declare support for 1.21.10.
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