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[Example] gatsby-next broken since gatsby@2.3.23

See original GitHub issue

The gatsby-next example is no longer able to run since gatsby@2.3.23

This is not a v0.x issue.
I have searched the issues of this repository and believe that this is not a duplicate.

Expected Behavior 🤔

yarn run develop should run without compiler issues

Current Behavior 😯

$ yarn run develop
success open and validate gatsby-configs — 0.004 s
success load plugins — 0.133 s
success onPreInit — 0.004 s
success initialize cache — 0.006 s
success copy gatsby files — 0.083 s
success onPreBootstrap — 0.008 s
success source and transform nodes — 0.019 s
success building schema — 0.116 s
success createPages — 0.001 s
success createPagesStatefully — 0.077 s
success onPreExtractQueries — 0.000 s
success update schema — 0.026 s
success extract queries from components — 0.022 s
success run graphql queries — 0.014 s — 7/7 576.29 queries/second
success write out page data — 0.006 s
success write out redirect data — 0.007 s
success onPostBootstrap — 0.000 s

info bootstrap finished - 3.919 s

error There was an error compiling the html.js component for the development server.

See our docs page on debugging HTML builds for help https://gatsby.dev/debug-html

  18 | 
  19 |  const sheets = globalLeak.get(pathname);
> 20 |  setHeadComponents([sheets.getStyleElement()]);
     |                            ^
  21 |  globalLeak.delete(pathname);
  22 | };
  23 | 


  WebpackError: TypeError: Cannot read property 'getStyleElement' of undefined

  - gatsby-ssr.js:20 Module.onRenderBody
    lib/plugins/gatsby-plugin-material-ui/gatsby-ssr.js:20:28

  - api-runner-ssr.js:37
    lib/.cache/api-runner-ssr.js:37:39


  - api-runner-ssr.js:33 ./.cache/api-runner-ssr.js.module.exports
    lib/.cache/api-runner-ssr.js:33:25

  - develop-static-entry.js:80 Module../.cache/develop-static-entry.js.__webpack_exports__.default
    lib/.cache/develop-static-entry.js:80:12

  - bootstrap:24 Promise
    lib/webpack/bootstrap:24:1


  - develop-static-entry.js:30 Promise._resolveFromExecutor
    lib/.cache/develop-static-entry.js:30:7

  - bootstrap:68 new Promise
    lib/webpack/bootstrap:68:1


  - bootstrap:5 tryCatcher
    lib/webpack/bootstrap:5:1

  - bootstrap:50 MappingPromiseArray._promiseFulfilled
    lib/webpack/bootstrap:50:1

  - api-runner-ssr.js:6 MappingPromiseArray.PromiseArray._iterate
    lib/.cache/api-runner-ssr.js:6:27

  - bootstrap:67 MappingPromiseArray.init
    lib/webpack/bootstrap:67:1

  - bootstrap:19 MappingPromiseArray._asyncInit
    lib/webpack/bootstrap:19:1



error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.