I was finally able to bitbake the recipe :) The problem was that I needed to use SRC_URI +=, instead or SRC_URI = Then, I read on another post that qt6-cmake added the assets without needing to explicitly tell it to do it, but I had to add them with SRC_URI =+ because they weren't being found. Then, I had a typo and that was it, the recipe bake successfully :)