Open vite.config.js and inspect the resolve.alias section.
By systematically searching for bad imports, inspecting your bundler configuration, and clearing caches, you can resolve this error in minutes. More importantly, adopting strict linting rules and avoiding core module aliases will prevent it from ever happening again. no matching export in fs src app.jsx for import app
import App from 'fs';
are different files. Check that your casing matches the actual filename. Missing Extensions: Open vite
Remove the fs path mapping. Similarly for tsconfig.json in TypeScript projects. inspecting your bundler configuration