@next/plugin-storybook does not work with experimental `modern: true` config option

[stefanprobst]

Bug report

when using the experimental: { modern: true } config option in next.config.js, and configuring storybook with @next/plugin-storybook, starting storybook fails with: "NextEsmPlugin: TypeError: Cannot read property 'chunks' of undefined".

Describe the bug

see above

To Reproduce

1. Clone repro at https://github.com/stefanprobst/next-storybook-issue
2. yarn && yarn storybook
3. see error

Expected behavior

@next/plugin-storybook should work with modern: true config.

Screenshots

System information

• OS: ubuntu 20.04
• Version of Next.js: 10.0.1
• Version of Node.js: 14.15.0

Additional context

i realize that both modern: true and @next/plugin-storybook are marked as experimental, so feel free to close or move to discussions.

[timneutkens]

We recommend not using the modern experiment as it's not being actively worked on currently.

[balazsorban44]

This issue has been automatically locked due to no recent activity. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.