Unable to run ionic application with nodejs V16

since i have installed the latest version in Nodejs(v16.13.2), i’m unabel to run my application

runnig ionic serve command shows this error in console

[app-scripts] node:internal/modules/cjs/loader:936
[app-scripts] throw err;
[app-scripts] ^
[app-scripts] Error: Cannot find module ‘node-sass’

i have tried to install node-sass@6.0.1 version, but it failed

 npm install --unsafe-perm node-sass --save

npm WARN ERESOLVE overriding peer dependency
npm WARN While resolving: essyndic@undefined
npm WARN Found: node-sass@4.14.1
npm WARN node_modules/node-sass
npm WARN   node-sass@"^4.10.0" from @ionic/app-scripts@3.2.4
npm WARN   node_modules/@ionic/app-scripts
npm WARN     dev @ionic/app-scripts@"^3.2.4" from the root project
npm WARN   3 more (gulp-sass, sass-loader, the root project)
npm WARN
npm WARN Could not resolve dependency:
npm WARN peerOptional node-sass@"^4.0.0 || ^5.0.0 || ^6.0.0" from sass-loader@11.1.1
npm WARN node_modules/sass-loader
npm WARN   sass-loader@"^11.1.1" from the root project
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 tar@2.2.2: This version of tar is no longer supported, and will not receive security updates. Please upgrade asap.
npm ERR! code 1
npm ERR! path C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\node-sass
npm ERR! command failed
npm ERR! command C:\Windows\system32\cmd.exe /d /s /c node scripts/build.js
npm ERR! Building: C:\Program Files\nodejs\node.exe C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli   'C:\\Program Files\\nodejs\\node.exe',
npm ERR! gyp verb cli   'C:\\Users\\Asus\\Desktop\\SyndicDigit01092021\\node_modules\\gulp-sass\\node_modules\\node-gyp\\bin\\node-gyp.js',
npm ERR! gyp verb cli   'rebuild',
npm ERR! gyp verb cli   '--verbose',
npm ERR! gyp verb cli   '--libsass_ext=',
npm ERR! gyp verb cli   '--libsass_cflags=',
npm ERR! gyp verb cli   '--libsass_ldflags=',
npm ERR! gyp verb cli   '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@16.13.2 | win32 | x64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "python2" in the PATH
npm ERR! gyp verb `which` failed Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:198:21)
npm ERR! gyp verb `which` failed  python2 Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:198:21) {
npm ERR! gyp verb `which` failed   code: 'ENOENT'
npm ERR! gyp verb `which` failed }
npm ERR! gyp verb check python checking for Python executable "python" in the PATH
npm ERR! gyp verb `which` succeeded python C:\Users\Asus\AppData\Local\Programs\Python\Python39\python.EXE
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Command failed: C:\Users\Asus\AppData\Local\Programs\Python\Python39\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack   File "<string>", line 1
npm ERR! gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack                       ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax
npm ERR! gyp ERR! stack
npm ERR! gyp ERR! stack     at ChildProcess.exithandler (node:child_process:397:12)
npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:390:28)
npm ERR! gyp ERR! stack     at maybeClose (node:internal/child_process:1064:16)
npm ERR! gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:301:5)
npm ERR! gyp ERR! System Windows_NT 10.0.19043
npm ERR! gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Asus\\Desktop\\SyndicDigit01092021\\node_modules\\gulp-sass\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\gulp-sass\node_modules\node-sass
npm ERR! gyp ERR! node -v v16.13.2
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

i even tried to upgrade @ionic/app-script, but it also failed

npm install @ionic/app-scripts@latest --save

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 ERR! code 1
npm ERR! path C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass
npm ERR! command failed
npm ERR! command C:\Windows\system32\cmd.exe /d /s /c node scripts/build.js
npm ERR! Building: C:\Program Files\nodejs\node.exe C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli   'C:\\Program Files\\nodejs\\node.exe',
npm ERR! gyp verb cli   'C:\\Users\\Asus\\Desktop\\SyndicDigit01092021\\node_modules\\node-sass\\node_modules\\node-gyp\\bin\\node-gyp.js',
npm ERR! gyp verb cli   'rebuild',
npm ERR! gyp verb cli   '--verbose',
npm ERR! gyp verb cli   '--libsass_ext=',
npm ERR! gyp verb cli   '--libsass_cflags=',
npm ERR! gyp verb cli   '--libsass_ldflags=',
npm ERR! gyp verb cli   '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@16.13.2 | win32 | x64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "python2" in the PATH
npm ERR! gyp verb `which` failed Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:198:21)
npm ERR! gyp verb `which` failed  python2 Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:198:21) {
npm ERR! gyp verb `which` failed   code: 'ENOENT'
npm ERR! gyp verb `which` failed }
npm ERR! gyp verb check python checking for Python executable "python" in the PATH
npm ERR! gyp verb `which` succeeded python C:\Users\Asus\AppData\Local\Programs\Python\Python39\python.EXE
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Command failed: C:\Users\Asus\AppData\Local\Programs\Python\Python39\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack   File "<string>", line 1
npm ERR! gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack                       ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax
npm ERR! gyp ERR! stack
npm ERR! gyp ERR! stack     at ChildProcess.exithandler (node:child_process:397:12)
npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:390:28)
npm ERR! gyp ERR! stack     at maybeClose (node:internal/child_process:1064:16)
npm ERR! gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:301:5)
npm ERR! gyp ERR! System Windows_NT 10.0.19043
npm ERR! gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Asus\\Desktop\\SyndicDigit01092021\\node_modules\\node-sass\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd C:\Users\Asus\Desktop\SyndicDigit01092021\node_modules\node-sass
npm ERR! gyp ERR! node -v v16.13.2
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

downgrading Nodejs is not an option!
what should i do please ?

this reminds me of node version mismatches with the version of ionic, angular or other dependencies. Maybe post package.json here?

If you dont want to downgrade node (why?), well, then you may have to upgrade other packages.

ps. are you using nvm to manage node versions? So you can check with a lower versions and revert back easily?

no i don’t use nvm !
here’s my packge.json

{

  "name": "essyndic",

  "author": "Essyndic Platform",

  "homepage": "http://essyndic.com/",

  "private": true,

  "scripts": {

    "clean": "ionic-app-scripts clean",

    "build": "ionic-app-scripts build  --dev",

    "ionic:build": "ionic-app-scripts build --dev",

    "ionic:serve": "ionic-app-scripts serve"

  },

  "config": {

    "ionic_source_map_type": "eval"

  },

  "dependencies": {

    "@angular/animations": "6.1.10",

    "@angular/cli": "^6.2.9",

    "@angular/common": "^6.1.10",

    "@angular/compiler": "6.1.10",

    "@angular/compiler-cli": "6.1.10",

    "@angular/core": "^6.1.10",

    "@angular/forms": "6.1.10",

    "@angular/http": "^6.1.10",

    "@angular/platform-browser": "6.1.10",

    "@angular/platform-browser-dynamic": "6.1.10",

    "@capacitor/android": "^1.2.1",

    "@capacitor/core": "^1.2.1",

    "@ionic-native/android-permissions": "^4.20.0",

    "@ionic-native/base64": "^5.22.0",

    "@ionic-native/call-number": "^5.28.0",

    "@ionic-native/camera": "^4.20.0",

    "@ionic-native/core": "4.20.0",

    "@ionic-native/document-viewer": "^4.20.0",

    "@ionic-native/downloader": "^5.26.0",

    "@ionic-native/fcm": "^4.20.0",

    "@ionic-native/file": "^4.20.0",

    "@ionic-native/file-opener": "^4.20.0",

    "@ionic-native/file-path": "4.20.0",

    "@ionic-native/file-transfer": "^4.20.0",

    "@ionic-native/firebase": "^4.20.0",

    "@ionic-native/firebase-authentication": "^4.20.0",

    "@ionic-native/image-resizer": "4.20.0",

    "@ionic-native/in-app-browser": "^4.20.0",

    "@ionic-native/launch-navigator": "^4.20.0",

    "@ionic-native/local-notifications": "^4.20.0",

    "@ionic-native/network": "^4.20.0",

    "@ionic-native/preview-any-file": "^5.27.0",

    "@ionic-native/push": "^4.20.0",

    "@ionic-native/qr-scanner": "^4.20.0",

    "@ionic-native/sms": "^5.36.0",

    "@ionic-native/splash-screen": "^4.20.0",

    "@ionic-native/status-bar": "4.20.0",

    "@ionic/angular": "4.11.2",

    "@ionic/storage": "^2.2.0",

    "@ionic/utils-subprocess": "^2.1.3",

    "@ngx-gallery/core": "2.0.1",

    "@ngx-gallery/gallerize": "2.0.1",

    "@ngx-gallery/lightbox": "2.0.1",

    "@types/html2canvas": "0.0.35",

    "@types/jspdf": "^1.3.3",

    "@types/lodash": "^4.14.116",

    "angular-font-awesome": "^3.1.2",

    "angular2-text-mask": "^9.0.0",

    "angularfire2": "^5.0.0-rc.3",

    "bn-ng-pdf-viewer": "^1.3.0",

    "bootstrap": "^3.4.1",

    "call-number": "^1.0.1",

    "cordova": "^10.0.0",

    "cordova-plugin-android-native-pdfviewer": "^1.2.0",

    "cordova-plugin-android-permissions": "^1.1.2",

    "cordova-plugin-compat": "^1.2.0",

    "cordova-plugin-console": " 1.1.0",

    "cordova-plugin-device": " 2.0.2",

    "cordova-plugin-document-viewer": "^0.9.13",

    "cordova-plugin-fcm": "^2.1.2",

    "cordova-plugin-file": "^6.0.2",

    "cordova-plugin-file-opener2": "^3.0.0",

    "cordova-plugin-file-transfer": "^1.7.1",

    "cordova-plugin-inappbrowser": "^4.0.0",

    "cordova-plugin-preview-any-file": "^0.1.6",

    "cordova-plugin-qrscanner": "^3.0.1",

    "cordova-plugin-statusbar": "^2.4.3",

    "cordova-plugin-whitelist": "^1.3.4",

    "cordova-res": "^0.14.0",

    "file-saver": "^2.0.2",

    "firebase": "^4.5.2",

    "flag-icon-css": "^3.5.0",

    "google-libphonenumber": "^3.2.25",

    "hammerjs": "^2.0.8",

    "html2canvas": "^1.0.0-rc.7",

    "integrator-cordova-plugin-downloader": "^1.1.0",

    "intl-input-phone": "0.0.7",

    "intl-tel-input": "^17.0.3",

    "ionic": "^5.4.16",

    "ionic-alpha-scroll": "^0.1.5",

    "ionic-angular": "3.9.5",

    "ionic-plugin-keyboard": "2.2.1",

    "ionic-text-mask": "^1.0.3",

    "ionic-tooltips": "^3.1.0",

    "ionic2-alpha-scroll": "^2.0.1",

    "ionicons": "3.0.0",

    "jspdf": "^2.3.1",

    "moment": "^2.24.0",

    "ng-dynamic": "3.0.2",

    "ng2-pdf-viewer": "^3.0.8",

    "ng2-pdfjs-viewer": "^5.0.7",

    "ng2-tel-input": "^2.3.0",

    "ngx-bootstrap": "^2.0.5",

    "ngx-extended-pdf-viewer": "^2.2.0-beta.1",

    "ngx-gallery": "^5.10.0",

    "ngx-intl-tel-input": "^3.0.5",

    "node-gyp": "^8.4.1",

    "promise-polyfill": "^8.2.0",

    "rxjs": "^6.6.7",

    "rxjs-compat": "^6.0.0-rc.0",

    "sass-loader": "^11.1.1",

    "screenfull": "^3.3.0",

    "sw-toolbox": "3.6.0",

    "tslint-ionic-rules": "0.0.21",

    "typescript": "^3.9.7",

    "web-animations-js": "2.3.1",

    "zone.js": "0.8.29"

  },

  "devDependencies": {

    "@capacitor/cli": "^1.2.1",

    "@ionic/app-scripts": "^3.2.4",

    "@ionic/cli-plugin-cordova": "1.4.1",

    "@ionic/cli-plugin-ionic-angular": "1.3.2",

    "@ionic/lab": "3.1.7",

    "@types/node": "^14.17.1",

    "cordova-android": "^9.1.0",

    "cordova-plugin-actionsheet": "^2.3.3",

    "cordova-plugin-androidx": "^3.0.0",

    "cordova-plugin-androidx-adapter": "^1.1.3",

    "cordova-plugin-badge": "^0.8.8",

    "cordova-plugin-dialogs": "^2.0.2",

    "cordova-plugin-firebase": "git+https://github.com/jestcastro/cordova-plugin-firebase.git",

    "cordova-plugin-firebase-analytics": "^6.0.1",

    "cordova-plugin-firebase-authentication": "^5.0.0",

    "cordova-plugin-firebase-messaging": "^6.0.0",

    "cordova-plugin-ionic-webview": " 4.1.2",

    "cordova-plugin-local-notification": "^0.9.0-beta.2",

    "cordova-plugin-network-information": "^2.0.2",

    "cordova-plugin-splashscreen": " 5.0.2",

    "cordova-sms-plugin": "^1.0.1",

    "cordova-support-android-plugin": "~1.0.0",

    "grunt": "^1.4.1",

    "grunt-contrib-jshint": " 2.1.0",

    "grunt-contrib-nodeunit": "^3.0.0",

    "grunt-contrib-uglify": " 4.0.1",

    "gulp": " 4.0.2",

    "gulp-clean-css": " 4.2.0",

    "gulp-dart-sass": "^1.0.2",

    "gulp-rename": "1.2.2",

    "gulp-replace": "0.5.4",

    "gulp-sass": "^3.2.1",

    "gulp-tslint": "6.1.2",

    "node-pre-gyp": "0.17.0",

    "phonegap-plugin-multidex": "^1.0.0",

    "sass": "^1.49.7",

    "ws": "3.3.2"

  },

  "cordovaPlugins": [

    "cordova-plugin-whitelist",

    "cordova-plugin-console",

    "cordova-plugin-device",

    "ionic-plugin-keyboard"

  ],

  "cordovaPlatforms": [

    "andoid",

    {

      "platform": "android",

      "version": "",

      "locator": "android"

    }

  ],

  "description": "Essyndic: vivons mieux ensemble !!!",

  "cordova": {

    "plugins": {

      "cordova-plugin-console": {},

      "cordova-plugin-device": {},

      "cordova-plugin-whitelist": {},

      "ionic-plugin-keyboard": {},

      "cordova-plugin-camera": {},

      "cordova-plugin-splashscreen": {},

      "cordova-plugin-ionic-webview": {

        "ANDROID_SUPPORT_ANNOTATIONS_VERSION": "27.+"

      },

      "cordova-plugin-statusbar": {},

      "cordova-plugin-compat": {},

      "cordova-plugin-file-transfer": {},

      "cordova-plugin-file-opener2": {

        "ANDROID_SUPPORT_V4_VERSION": "27.+"

      },

      "cordova-plugin-file": {},

      "cordova-plugin-android-permissions": {},

      "integrator-cordova-plugin-downloader": {},

      "cordova-plugin-document-viewer": {},

      "cordova-plugin-preview-any-file": {},

      "mx.ferreyra.callnumber": {},

      "cordova-plugin-inappbrowser": {},

      "cordova-plugin-network-information": {},

      "cordova-plugin-qrscanner": {},

      "cordova-plugin-firebase-authentication": {

        "FIREBASE_AUTH_VERSION": "version",

        "ANDROID_FIREBASE_AUTH_VERSION": "21.0.+"

      },

      "cordova-plugin-firebase-messaging": {

        "ANDROID_FIREBASE_MESSAGING_VERSION": "22.0.+",

        "ANDROIDX_CORE_VERSION": "1.6.+"

      },

      "cordova-plugin-androidx-adapter": {},

      "cordova-plugin-androidx": {},

      "cordova-plugin-local-notification": {},

      "uk.co.workingedge.phonegap.plugin.launchnavigator": {

        "GOOGLE_API_KEY_FOR_ANDROID": "{AIzaSyDKPoxyq-fz2PvPucpBSonxif4HbhZJI94}",

        "OKHTTP_VERSION": "3.12.0"

      },

      "cordova-plugin-firebase-analytics": {},

      "cordova-plugin-firebase": {},

      "cordova-sms-plugin": {}

    },

    "platforms": [

      "android"

    ]

  }

}

And why cant u downgrade node?

I truly wonder if this node version does go well with angular 6 and everything that depends on it - including ionic

So why not downgrade node? Are there dependencies in the package that needs node16 or are there other projects on your machine dependent on it (then use nvm)

The other option is to upgrade stuff until it works - imho that is the hardest way because of breaking changes and the fact u cant test if the app works

i have solved it by removing sass-loader package!
i have installed successfuly node-sass@6.0.1 for nodejs V16
and ionic serve works perfectly now!

thanks for your help Sir!

1 Like

Much easier! Happy coding!

Hi my friend, I have the same issue. remove sass-loader,What command should be executed?

thank you !.