Bug: react-refresh invalid main entry

[wojtekmaj]

Steps To Reproduce

1. Try to require react-refresh package directly ('react-refresh', not anything like 'react-refresh/runtime').

The current behavior

Error: Cannot find module '/node_modules/react-refresh/index.js'. Please verify that the package.json has a valid "main" entry

Indeed, main field in react-refresh points to index.js, which is simply not there. There's babel.js and runtime.js

The expected behavior

• index.js file to be created, printing an error that you should require …/babel or …/runtime instead.
• OR main entry file changed to babel.js or runtime.js

[gaearon]

There is no main entry intended. I guess we could remove the main field.

[wojtekmaj]

That should be fine - only name and version are required.

[gaearon]

Happy to take a PR.

[wojtekmaj]

Actually taking that back - this was fixed in #19193 by setting the default to /runtime.js. It was just not released for 3 months already. Sorry!