Problems with imports: ERR_MODULE_NOT_FOUND

Environment

Nuxt CLI v3.0.0-rc.3-27536597.3359b3b RootDir: /sandbox Nuxt project info:

---

• Operating System: Linux
• Node Version: v14.18.1
• Nuxt Version: 2.16.0-27358576.777a4b7f
• Package Manager: yarn@1.22.17
• Builder: webpack
• User Config: bridge, buildModules
• Runtime Modules: -
• Build Modules: @nuxt/bridge@3.0.0-27530716.c4f8671

---

Reproduction

https://codesandbox.io/s/async-platform-s1qn8l

Open a new terminal and run yarn build, followed by yarn start.

Describe the bug

The app works fine in development, but is not working after building. yarn build, followed by yarn start does not work.

Additional context

I noticed that the ufo package is missing a package.json, which might be the reason for the issue. In my private app, I replaced all import of ufo with ufo/dist/index.mjs, which fixed the error for ufo , but reveiled additional import related errors.

Logs

sandbox@sse-sandbox-s1qn8l:/sandbox$ node .output/server/index.mjs
internal/process/esm_loader.js:74
    internalBinding('errors').triggerUncaughtException(
                              ^

Error [ERR_MODULE_NOT_FOUND]: Cannot find package '/sandbox/.output/server/node_modules/ufo/' imported from /sandbox/.output/server/index.mjs
Did you mean to import ufo/dist/index.cjs?
    at new NodeError (internal/errors.js:322:7)
    at legacyMainResolve (internal/modules/esm/resolve.js:245:9)
    at packageResolve (internal/modules/esm/resolve.js:680:14)
    at moduleResolve (internal/modules/esm/resolve.js:728:18)
    at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:842:11)
    at Loader.resolve (internal/modules/esm/loader.js:89:40)
    at Loader.getModuleJob (internal/modules/esm/loader.js:242:28)
    at ModuleWrap.<anonymous> (internal/modules/esm/module_job.js:76:40)
    at link (internal/modules/esm/module_job.js:75:36) {
  code: 'ERR_MODULE_NOT_FOUND'
}

[nuxt] [request error] Cannot find package '/Users/pascal/code/ips-hosting/frontend/.output/server/node_modules/graphql/' imported from /Users/pascal/code/ips-hosting/frontend/.output/server/chunks/app/server.mjs
  at new NodeError (node:internal/errors:371:5)
  at legacyMainResolve (node:internal/modules/esm/resolve:335:9)
  at packageResolve (node:internal/modules/esm/resolve:877:14)
  at moduleResolve (node:internal/modules/esm/resolve:929:18)
  at defaultResolve (node:internal/modules/esm/resolve:1044:11)
  at ESMLoader.resolve (node:internal/modules/esm/loader:422:30)
  at ESMLoader.getModuleJob (node:internal/modules/esm/loader:222:40)
  at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:76:40)
  at link (node:internal/modules/esm/module_job:75:36)

[danielroe]

See https://github.com/nuxt/framework/issues/3343.

[P4sca1]

After refreshing my lock file to upgrade all dependencies, I can confirm that the issue is gone.