Build failed - flatmap error

[juanmaguerrero]

I follow the steps on the readme, but I keep getting build error:

➜  3DGridContentPreview git:(main) npm install
npm WARN deprecated [email protected]: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated [email protected]: this library is no longer supported
npm WARN deprecated [email protected]: request-promise-native has been deprecated because it extends the now deprecated request package, see https://github.com/request/request/issues/3142

> @parcel/[email protected] install /Users/juanmaguerrero/Documents/PROYECTOS/vadkiria/2021-src/3DGridContentPreview/node_modules/@parcel/source-map
> node-gyp-build


> @parcel/[email protected] install /Users/juanmaguerrero/Documents/PROYECTOS/vadkiria/2021-src/3DGridContentPreview/node_modules/@parcel/watcher
> node-gyp-build


> [email protected] postinstall /Users/juanmaguerrero/Documents/PROYECTOS/vadkiria/2021-src/3DGridContentPreview/node_modules/core-js
> node -e "try{require('./postinstall')}catch(e){}"

Thank you for using core-js ( https://github.com/zloirock/core-js ) for polyfilling JavaScript standard library!

The project needs your help! Please consider supporting of core-js on Open Collective or Patreon: 
> https://opencollective.com/core-js 
> https://www.patreon.com/zloirock 

Also, the author of core-js ( https://github.com/zloirock ) is looking for a good job -)


> [email protected] postinstall /Users/juanmaguerrero/Documents/PROYECTOS/vadkiria/2021-src/3DGridContentPreview/node_modules/ejs
> node ./postinstall.js

Thank you for installing EJS: built with the Jake JavaScript build tool (https://jakejs.com/)

npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN [email protected] requires a peer of bufferutil@^4.0.1 but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of utf-8-validate@^5.0.2 but none is installed. You must install peer dependencies yourself.

added 1199 packages from 831 contributors and audited 1199 packages in 21.133s
found 73 moderate severity vulnerabilities
  run `npm audit fix` to fix them, or `npm audit` for details
➜  3DGridContentPreview git:(main) npm start

> [email protected] start /Users/juanmaguerrero/Documents/PROYECTOS/vadkiria/2021-src/3DGridContentPreview
> parcel src/index.html --open

ℹ️ Server running at http://localhost:1234
🚨 Build failed.
Error: [(...previousDevDepRequests.entries(...))].filter(...).flatMap is not a function
TypeError: [(...previousDevDepRequests.entries(...))].filter(...).flatMap is not a function
    at Object.run (/Users/juanmaguerrero/Documents/PROYECTOS/vadkiria/2021-src/3DGridContentPreview/node_modules/@parcel/core/lib/requests/AssetRequest.js:94:122)

If someone could point me in the right direction? Thanks so much in advance!

[Sheshiyer]

🚨 Build failed. Error: [(...previousDevDepRequests.entries(...))].filter(...).flatMap is not a function TypeError: [(...previousDevDepRequests.entries(...))].filter(...).flatMap is not a function at Object.run (/Users/juanmaguerrero/Documents/PROYECTOS/vadkiria/2021-src/3DGridContentPreview/node_modules/@parcel/core/lib/requests/AssetRequest.js:94:122)

Try git bash and run the commands from readme