title: Cannot find module 'node-sass' while running the angular 7 application
body: <p>I am trying to run my application but I am getting the below error.</p>
  
  <blockquote>
    <p>ERROR in ./src/styles.scss (./node_modules/@angular-devkit/build-angular/src/angular-cli-files/plugins/raw-css-loader.js!./node_modules/postcss-loader/src??embedded!./node_modules/sass-loader/lib/loader.js??ref--14-3!./src/styles.scss)
    Module build failed (from ./node_modules/sass-loader/lib/loader.js):
    Error: Cannot find module 'node-sass'
            at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
        at Function.Module._load (internal/modules/cjs/loader.js:507:25)
        at Module.require (internal/modules/cjs/loader.js:637:17)
        at require (internal/modules/cjs/helpers.js:22:18)
        at Object.sassLoader (C:\Users\xxx\xxx\App\xxxx\node_modules\sass-loader\lib\loader.js:46:72)
    ERROR in ./src/app/widget-modules/xxxxx/xxxx.component.ts
    Module not found: Error: Can't resolve './xxxxx.component.scss' in 'C:\Users\oooo\mmmm\App\zzzz\src\app\yyyy\xxxx'.</p>
  </blockquote>
  
  <p>I tried installing node-sass with below commands but nothing's working. I am also getting the python error when I try to run below commands.</p>
  
  <pre><code>    npm i node-sass
      npm i --save node-sass
      npm i --save-dev node-sass
      npm install --save-dev  --unsafe-perm node-sass
  </code></pre>
  
  <p>Error:</p>
  
  <blockquote>
    <p>can't find python executable python you can set the python env variable.</p>
  </blockquote>
  
  <p>Also I deleted the node_modules folder and reinstalled but not working.</p>