The core layer includes this module: https://nuxt.com/modules/icon
if you want to use icons you can pick from https://icones.js.org/ and use it directly with the included Icon component. Then you ...
I had the same problem when using Nuxt Layers. The module was registered in my Geo Layer, but then I had the same error message in my App Layer. As a temporary fix, I added the nuxt-maplibre packag...