Looking to contribute, but yarn start fails on next branch

[boylec]

Summary

I followed contribution guide (both CONTRIBUTE.md and https://storybook.js.org/docs/contribute/code)

Simply:

• forked the next branch

• cloned

• from root of repo

  nvm use
  corepack enable
  yarn start
  

• yarn start fails with log below

  > yarn prep --reset
  
  Debugger attached.
  Debugger attached.
  Debugger attached.
  Bundling...
  [Error: ENOENT: no such file or directory, open '/src/storybook/code/core/dist/theming/index.d.ts'] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'open',
  path: '/src/storybook/code/core/dist/theming/index.d.ts'
  }
  Waiting for the debugger to disconnect...
  Waiting for the debugger to disconnect...
  Waiting for the debugger to disconnect...

Tried cleaning, re-cloning, etc. No dice.

Tried yarn prep from /code/core, that reproduces the failure.

Additional information

No response

Create a reproduction

No response

[boylec]

Its very weird. Seems to fail at line 23 of sourcefiles.ts

export const generateSourceFiles = async () => {
  const location = join(__dirname, '..', '..', 'src');
  const prettierConfig = await prettier.resolveConfig(location);

  await Promise.all([
    //
    generateFrameworksFile(prettierConfig),
    generateVersionsFile(prettierConfig),
    generateExportsFile(prettierConfig), // <------ seems to fail on this
  ]);
};