I've faced here very strange situation with modules load. During build it was failing with message that module could not be located. Like "Module not found: Can't resolve 'ieee754'". After some time banging my head against the wall I found that it was trying to import it from one level up from project (it's monorepo with some few git repos checked inside main). And there apperared node_modules folder with dev tools. So after deleting node_modules from upper level everything started to build properly again. So my question sounds like - is it next.js specific or general node.js modules import behaviour or where it sourced from? Any suggestions and ideas please.