Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (88)

I have tried to install gulp-sass latest version with npm i gulp-sass --save-dev in the begining I got a lot of errors but later solved them. But whenever I try to run gulp I got this error:

Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (88)
For more information on which environments are supported please see:
https://github.com/sass/node-sass/releases/tag/v4.14.1
    at module.exports (C:\Users\user\Desktop\HPortf\node_modules\node-sass\lib\binding.js:13:13)
    at Object.<anonymous> (C:\Users\user\Desktop\HPortf\node_modules\node-sass\lib\index.js:14:35)
    at Module._compile (node:internal/modules/cjs/loader:1083:30)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1112:10)
    at Module.load (node:internal/modules/cjs/loader:948:32)
    at Function.Module._load (node:internal/modules/cjs/loader:789:14)
    at Module.require (node:internal/modules/cjs/loader:972:19)
    at require (node:internal/modules/cjs/helpers:88:18)
    at Object.<anonymous> (C:\Users\user\Desktop\HPortf\node_modules\gulp-sass\index.js:166:21)
    at Module._compile (node:internal/modules/cjs/loader:1083:30)

I have tried to fix the problem with npm rebuild node-sass --force but it rise error too.

PS C:\Users\user\Desktop\HPortf> npm rebuild node-sass --force
npm WARN using --force I sure hope you know what you are doing.

> node-sass@4.14.1 install C:\Users\user\Desktop\HPortf\node_modules\node-sass
> node scripts/install.js

Downloading binary from https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-88_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-88_binding.node":

HTTP error 404 Not Found

Hint: If github.com is not accessible in your location
      try setting a proxy via HTTP_PROXY, e.g.

      export HTTP_PROXY=http://example.com:1234

or configure npm proxy via

      npm config set proxy http://example.com:8080

> node-sass@4.14.1 postinstall C:\Users\user\Desktop\HPortf\node_modules\node-sass
> node scripts/build.js

Building: C:\Program Files\nodejs\node.exe C:\Users\user\Desktop\HPortf\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [
gyp verb cli   'C:\\Program Files\\nodejs\\node.exe',
gyp verb cli   'C:\\Users\\user\\Desktop\\HPortf\\node_modules\\node-gyp\\bin\\node-gyp.js',
gyp verb cli   'rebuild',
gyp verb cli   '--verbose',
gyp verb cli   '--libsass_ext=',
gyp verb cli   '--libsass_cflags=',
gyp verb cli   '--libsass_ldflags=',
gyp verb cli   '--libsass_library='
gyp verb cli ]
gyp info using node-gyp@3.8.0
gyp info using node@15.0.1 | win32 | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2
gyp verb `which` failed     at getNotFoundError (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:80:29)
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\which\which.js:89:16
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:183:21)
gyp verb `which` failed  python2 Error: not found: python2
gyp verb `which` failed     at getNotFoundError (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:80:29)
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\which\which.js:89:16
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:183:21) {
gyp verb `which` failed   code: 'ENOENT'
gyp verb `which` failed }
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` failed Error: not found: python
gyp verb `which` failed     at getNotFoundError (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:80:29)
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\which\which.js:89:16
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:183:21)
gyp verb `which` failed  python Error: not found: python
gyp verb `which` failed     at getNotFoundError (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (C:\Users\user\Desktop\HPortf\node_modules\which\which.js:80:29)
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\which\which.js:89:16
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at C:\Users\user\Desktop\HPortf\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:183:21) {
gyp verb `which` failed   code: 'ENOENT'
gyp verb `which` failed }
gyp verb could not find "python". checking python launcher
gyp verb could not find "python". guessing location
gyp verb ensuring that file exists: C:\Python27\python.exe
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack     at PythonFinder.failNoPython (C:\Users\user\Desktop\HPortf\node_modules\node-gyp\lib\configure.js:484:19)gyp ERR! stack     at PythonFinder.<anonymous> (C:\Users\user\Desktop\HPortf\node_modules\node-gyp\lib\configure.js:509:16) 
gyp ERR! stack     at callback (C:\Users\user\Desktop\HPortf\node_modules\graceful-fs\polyfills.js:295:20)
gyp ERR! stack     at FSReqCallback.oncomplete (node:fs:183:21)
gyp ERR! System Windows_NT 10.0.18362
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\user\\Desktop\\HPortf\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd C:\Users\user\Desktop\HPortf\node_modules\node-sass
gyp ERR! node -v v15.0.1
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
Build failed with error code: 1
node-sass@4.14.1 C:\Users\user\Desktop\HPortf\node_modules\node-sass
PS C:\Users\user\Desktop\HPortf>

• node and npm version

$ node --version
v15.0.1
user (master *) HmdPort
$ npm --version
6.14.8

Thanks to jonrsharpe.

Worked for me:

1. install / downgrade node.js to a stable version (LTS) like 14.15.0
2. install the compatible node-sass version via npm install [email protected]; you can find the list here, or even install gulp-sasswith npm i gulp-sass --save-dev.

direct link to list

None of the above worked for me. So, instead I uninstalled node-sass and installed just sass. No more errors!

npm uninstall node-sass

npm i sass

This command in the console worked for me:

npm rebuild node-sass

> Warning: LibSass and Node Sass are deprecated. While they will continue to receive maintenance releases indefinitely, there are no plans to add additional features or compatibility with any new CSS or Sass features. Projects that still use it should move onto Dart Sass.

the node-sass package is deprecated.

Instead install sass instead like this:

yarn add sass -D
# or
npm i sass --save-dev

remove node-sass

npm remove node-sass

then install

npm i node-sass@npm:sass -D

Node sass project is deprecated. Don't use it anymore!

https://sass-lang.com/blog/libsass-is-deprecated

The new project uses Dart. https://sass-lang.com/dart-sass

I ran to the same problem and I found that the best solution is to use gulp-dart-sass. You won't need to downgrade your Node.js(I'm using it with Node version: v15.3.0 right now)

Simple replace gulp-sass to gulp-dart-sass

I encountered the same issue after updating my Node.js version from 14.15.5(LTS) to 15.8.0.
In order to resolve this issue I downgraded Node.js version back to 14.15.5(LTS).

I used chocolatey to downgrade NPM. If you don't have chocolatey installed in your system,
you can get Chocolatey from here.

Now to downgrade Node.js we have to do the following steps

1. Uninstall latest version of the Node.js
   For that you have to use this code.
   choco uninstall nodejs

2. To install the desired version of Node.js,
   choco install nodejs --version $VersionNumber

in my case,
choco uninstall nodejs
choco install nodejs --version 14.15.5

this solved my issue.

Worked for me

1. npm install with specific node version that you need

   This the version of node that I am using

   npm install -g [email protected] --target_arch=x64

2. Clean cache

   npm cache clean --force

   rm -rf /node_modules

3. Install node-sass

   npm install node-sass --save-dev --force

4. If you have errors and warnings try:

   npm fund

   npm audit fix

   npm install -g [email protected] --target_arch=x64

   npm start

I met the same issue, and here's how I was able to fix it:

Firstly, you have to know which node-sass version you are using in your project, then go upgrade or downgrade your current nodeJS version to the compatible version with your current node-sass version, you can know that from this link.

Ofc, stop the server, and close your IDE.

So, the best way to upgrade or downgrade the nodeJS version, has mentioned above in this answer, then remove the node_modules, and package-lock.json and install again.. You can do it as such:

npm cache clean --force

rm -rf /node_modules package-lock.json

npm install

npm audit fix

npm run <your_script_name>

Good Luck!

For me, the issue happened after I updated my node version to 16, I downgraded the node version to 14.17.6 and had to uninstall the node-sass version 6 and reinstall node-sass version 4.14 which is compactible with node 14+

npm uninstall node-sass
npm i node-sass@4.14

For me the only solution was to downgrade NodeJs from 16(my current version) to 10 version (it can be any version below probably), tried almost all that were advised here and on other websites and only this helped.

Here are the steps I followed to make it work.

• brew uninstall node (Or uninstall with the package manager you used)
• brew install n
• sudo chown -R $(whoami) /usr/local/n
• n 14.15.0

For any1 having this problem with SPFx

If you have upgraded your node version, steps to upgrade your SPFx solution

1. Create a side clean SPFx project (Webpart or Extension (Extension is only with 2019+))

2. Save somewhere (just in case) the following files package.json, tsconfig.json, package-lock.json

3. Copy from your new project to your old project only 2 files package.json, tsconfig.json

4. Run gulp clean

5. Run npm install

6. Run gulp build ect.

summerized here

I am late to the party but what I did is install nvm and add a small function in .bashrc to change node version as I need using an alias.

function switchNodeVersion()
{
  nvm use 14.6.0
  node-sass [options] <input.scss> [output.css]
  nvm use 16.13.0
}
alias swap=switchNodeVersion

1. In my case I removed node-sass with npm remove node-sass

2. then I installed node-sass npm i node-sass@next

3. restarted server

• Hurray! everything worked fine *