Unable to install NPM

[Marc-MMA]

Hello and first of all thank you for your theme that I just discovered, it looks wonderful!

I have a problem with the installation of NPM:

> PS C:\wamp64\www\bedtest\web\app\themes\flynt> npm install
> npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead.
> npm WARN old lockfile 
> npm WARN old lockfile The package-lock.json file was created with an old version of npm,
> npm WARN old lockfile so supplemental metadata must be fetched from the registry.
> npm WARN old lockfile
> npm WARN old lockfile This is a one-time fix-up, please be patient...
> npm WARN old lockfile
> npm WARN deprecated ini@1.3.5: Please update to ini >=1.3.6 to avoid a prototype pollution issue
> npm WARN deprecated stable@0.1.8: Modern JS already guarantees Array#sort() is a stable sort, so this library is deprecated. See the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#browser_compatibility
> npm WARN deprecated @stylelint/postcss-markdown@0.36.1: Use the original unforked package instead: postcss-markdown
> npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
> npm WARN deprecated har-validator@5.1.3: this library is no longer supported
> npm WARN deprecated chokidar@2.1.2: Chokidar 2 does not receive security updates since 2019. Upgrade to chokidar 3 with 15x fewer dependencies
> npm WARN deprecated chokidar@2.1.8: Chokidar 2 does not receive security updates since 2019. Upgrade to chokidar 3 with 15x fewer dependencies
> npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
> npm WARN deprecated circular-json@0.3.3: CircularJSON is in maintenance only, flatted is its successor.
> npm WARN deprecated browserslist@2.11.3: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.
> npm WARN deprecated source-map-url@0.4.0: See https://github.com/lydell/source-map-url#deprecated
> npm WARN deprecated debug@4.1.1: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
> npm WARN deprecated debug@3.2.6: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
> npm WARN deprecated gulp-util@3.0.8: gulp-util is deprecated - replace it, following the guidelines at https://medium.com/gulpjs/gulp-util-ca3b1f9f9ac5
> npm WARN deprecated querystring@0.2.0: The querystring API is considered Legacy. new code should use the URLSearchParams API instead.
> npm WARN deprecated babel-eslint@10.1.0: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates.
> npm WARN deprecated document-register-element@1.14.10: V0 is gone and the best V1 polyfill is now @ungap/custom-elements
> npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
> npm WARN deprecated source-map-resolve@0.5.2: See https://github.com/lydell/source-map-resolve#deprecated
> npm WARN deprecated uuid@3.3.2: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
> npm WARN deprecated standard-version@8.0.2: standard-version is deprecated. If you're a GitHub user, I recommend https://github.com/googleapis/release-please as an alternative.
> npm WARN deprecated axios@0.19.0: Critical security vulnerability fixed in v0.21.1. For more information, see https://github.com/axios/axios/pull/3410
> npm WARN deprecated svgo@1.3.2: This SVGO version is no longer supported. Upgrade to v2.x.x.
> npm WARN deprecated tar@2.2.2: This version of tar is no longer supported, and will not receive security updates. Please upgrade asap.
> npm WARN deprecated core-js@3.6.5: core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js.
> npm ERR! code 255
> npm ERR! path C:\wamp64\www\bedtest\web\app\themes\flynt\node_modules\swiper
> npm ERR! command failed
> npm ERR! command C:\Windows\system32\cmd.exe /d /s /c C:\Users\marcm\AppData\Local\Temp\postinstall-c0b051a6.cmd
> npm ERR! "Love Swiper? Support Vladimir's work by donating or pledging on patreon:
> npm ERR! La syntaxe de la commande n'est pas correcte.
> 
> npm ERR! A complete log of this run can be found in:
> npm ERR!     C:\Users\marcm\AppData\Local\npm-cache\_logs\2022-08-13T20_52_35_666Z-debug-0.log

Any ideas?

Thanks

[Marc-MMA]

I think I can just be answered at the discussion tab I just discovered!

[timohubois]

@Marc-MMA did you use Node 12 as noticed inside the Requirements section?