Getting Less into Laravel 5.4

Hello! Basically I'm trying to include bootstrap less. I've read some stuff online, but it's left me confused. I've included bootstrap less into the package.json file.

  "devDependencies": {
    "axios": "^0.15.3",
    "bootstrap-less": "^3.3.8",
    "cross-env": "^3.2.3",
    "jquery": "^3.1.1",
    "laravel-mix": "0.*",
    "lodash": "^4.17.4",
    "vue": "^2.1.10"
  }

I've ran npm install I created resources/assets/less/app.less file with just @import "node_modules/bootstrap-less/bootstrap"; Then, I commented require('bootstrap-sass'); in resources/assets/js/bootstrap.js/bootstrap And, I changed webpack.mix.js file with

mix.js('resources/assets/js/app.js', 'public/js')
   .less('resources/assets/less/app.less', 'public/css');

But still I got a compilation error?

 ERROR  Failed to compile with 2 errors                              

 error  in ./resources/assets/less/app.less

Module build failed: Can't resolve './node_modules/bootstrap-less/bootstrap.less' in
...
resources/assets/less/app.less (line 9, column 0)
 near lines:
   // Bootstrap
   @import "node_modules/bootstrap-less/bootstrap";
...
 error  in ./resources/assets/less/app.less

Module build failed: ModuleBuildError: Module build failed: Can't resolve './node_modules/bootstrap-less/bootstrap.less' in
...
resources/assets/less'
 @ /home/ambarc/laravel-projects/less-stylesheet/resources/assets/less/app.less (line 9, column 0)
 near lines:
   // Bootstrap
   @import "node_modules/bootstrap-less/bootstrap";

Any ideas?