### Describe the feature Just migrated from unbuild (with `ext: 'js'`), I almost forgot to change `.[jt]s` in the package to `.m[jt]s`. If a non-existent file is referenced in the ``exports` `main` `module` `types`` of `package.json`, a warning after building may enhance DX. ### Additional information - [ ] Would you be willing to help implement this feature?
Describe the feature
Just migrated from unbuild (with
ext: 'js'), I almost forgot to change.[jt]sin the package to.m[jt]s.If a non-existent file is referenced in the
exports` `main` `module` `typesofpackage.json, a warning after building may enhance DX.Additional information