We now make the distinction between npm modules and relative modules when they are missing (#34):
ERROR Failed to compile with 3 errors
This dependency was not found:
* not-found in ./test/fixtures/module-errors/index.js
To install it, you can run: npm install --save not-found
These relative modules were not found:
* ./non-existing in ./test/fixtures/module-errors/index.js
* ../non-existing in ./test/fixtures/module-errors/index.js
Thanks @christophehurpeau !