Build doesn't work when using Dynamic Import

[shiftrtech]

What version of Next.js are you using?

10.2.0

What version of Node.js are you using?

16.1.0

What browser are you using?

Chrome

What operating system are you using?

Windows

How are you deploying your application?

next build

Describe the Bug

When i try to build my app (next build) im getting this error:

info  - Using webpack 5. Reason: future.webpack5 option enabled https://nextjs.org/docs/messages/webpack5
info  - Checking validity of types  
info  - Creating an optimized production build

.\node_modules\next\dist\compiled\webpack\bundle5.js:114742
                                fn: str => str.startsWith(condition)
                                               ^

TypeError: Cannot read property 'startsWith' of null
    at Object.fn (.\node_modules\next\dist\compiled\webpack\bundle5.js:114742:20)

Expected Behavior

A successful compilation

To Reproduce

import dynamic from 'next/dynamic'

export default function BlockDynamicRenderer({ blocks = [] }) {
  return <div>
    {blocks.map(({ __typename }, index) => {
            const BlockComponent = dynamic(() =>
              import(`@/components/Blocks/${__typename}`)
            );
    })}
  </div>
}

2. next build
3. See error

To Bypass

When i use this on next.config.js it works:

module.exports = {
  future: {
    webpack5: false
  },
}

[shiftrtech]

I can confirm this is related to this

[valse]

Hi, I have issues with next/dynamic in production too after upgrading to next 10.2.1... the project built but when it is started javascript isn't executed at all: disabling webpack 5 the issue disappear

[github-actions]

This issue has been automatically closed after 30 days of inactivity with no reproduction. If you are running into a similar issue, please open a new issue with a reproduction. Thank you.

[github-actions]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.