title: running angular project gives error for node-sass
body: <p>I am running a anglar project in my local environment. with below specified vesions. and i cannot run project and get the errors below:
  npm version : 6.9.0
  Angular CLI: 7.3.9
  Node: 10.16.0
  OS: win32 x64</p>
  
  <pre><code>ERROR in ./src/assets/styles/style.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/assets/styles/style.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:636:15)
      at Function.Module._load (internal/modules/cjs/loader.js:562:25)
      at Module.require (internal/modules/cjs/loader.js:690:17)
      at require (internal/modules/cjs/helpers.js:25:18)
      at Object.sassLoader (..\node_modules\sass-loader\lib\loader.js:46:72)
  ERROR in ./src/app/modules/shared/components/loader/loader.component.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:636:15)
      at Function.Module._load (internal/modules/cjs/loader.js:562:25)
      at Module.require (internal/modules/cjs/loader.js:690:17)
      at require (internal/modules/cjs/helpers.js:25:18)
      at Object.sassLoader (..\node_modules\sass-loader\lib\loader.js:46:72)
  i ｢wdm｣: Failed to compile.
  </code></pre>
  
  <p>i have tried deleting node_modules and reinstalling it also </p>
  
  <hr>
  
  <pre><code>Delete `package-lock.json` file.
  Go to node_module folder and `run rm -rf node_modules`.
  Run `npm install`
  </code></pre>
  
  <hr>
  
  <pre><code>npm rebuild --force
  npm rebuild node-sass --force
  </code></pre>