Texture 1.17.1 to 1.21.1

[RyZeeTheBest]

Hello! Previously I used version 1.17.1 for my server, however I wanted to switch to 1.21.1.
However, I don't know how to "convert" the texture, which doesn't work in 1.21.1.
Does anyone know how to help me?

 

[TobyMinceraft]

There isn't really a reason why the texture doesn't work, but there are several reasons why a model does not work.
Can you explain a bit more of what you mean by "texture"?

Some things you can try on your own is open the Minecraft .jar file of the version you want the resource pack from in a program such as WinRAR for Windows (or the default Archive Utility on MAC), then search for the assets folder which all the resource pack files will be in (pack.png and pack.mcmeta are in the root folder)

 

[RyZeeTheBest]

first, the texture say "made of an older minecraft version"
seconds, models work but the texture doesn't work, i saw the models "black" or purple and black

 

[rita.ramirez]

Check the resource pack structure: Between 1.17 and 1.21, there were changes to the file organization (e.g., assets folders, texture names, and locations). Make sure your texture follows the new architecture.