How to upgrade to bootstrap 4 in laravel 5.4?

Question

Bootstrap

I do this guide TYK
But I fall off with an error during assembly

[email protected]:~/www/webvoyager.pro$ npm run dev

> @ dev /var/www/production/data/www/webvoyager.pro
> node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/web                                                                         pack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setu                                                                         p/webpack.config.js

module.js:328
    throw err;
    ^

Error: Cannot find module '/var/www/production/data/www/webvoyager.pro/node_modules/                                                                         cross-env/bin/cross-env.js'
    at Function.Module._resolveFilename (module.js:326:15)
    at Function.Module._load (module.js:277:25)
    at Function.Module.runMain (module.js:442:10)
    at startup (node.js:136:18)
    at node.js:966:3

npm ERR! Linux 4.4.0-34-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "run" "dev"
npm ERR! node v4.2.6
npm ERR! npm  v3.5.2
npm ERR! code ELIFECYCLE
npm ERR! @ dev: `node node_modules/cross-env/bin/cross-env.js NODE_ENV=development n                                                                         ode_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/l                                                                         aravel-mix/setup/webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ dev script 'node node_modules/cross-env/bin/cross-env.js NO                                                                         DE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --c                                                                         onfig=node_modules/laravel-mix/setup/webpack.config.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the  package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_                                                                         modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/larav                                                                         el-mix/setup/webpack.config.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /var/www/production/data/www/webvoyager.pro/npm-debug.log

#нашел файл по этому пути и положил как требуется, далее повторяем сборку

[email protected]:~/www/webvoyager.pro$ npm run dev

> @ dev /var/www/production/data/www/webvoyager.pro
> node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/web                                                                         pack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setu                                                                         p/webpack.config.js

/var/www/production/data/www/webvoyager.pro/node_modules/laravel-mix/setup/webpack.c                                                                         onfig.js:1
(function (exports, require, module, __filename, __dirname) { let path = require('pa                                                                         th');
                                                              ^^^

SyntaxError: Block-scoped declarations (let, const, function, class) not yet support                                                                         ed outside strict mode
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:374:25)
    at Object.Module._extensions..js (module.js:417:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Module.require (module.js:354:17)
    at require (internal/module.js:12:17)
    at requireConfig (/var/www/production/data/www/webvoyager.pro/node_modules/webpa                                                                         ck/bin/convert-argv.js:96:18)
    at /var/www/production/data/www/webvoyager.pro/node_modules/webpack/bin/convert-                                                                         argv.js:109:17
    at Array.forEach (native)

npm ERR! Linux 4.4.0-34-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "run" "dev"
npm ERR! node v4.2.6
npm ERR! npm  v3.5.2
npm ERR! code ELIFECYCLE
npm ERR! @ dev: `node node_modules/cross-env/bin/cross-env.js NODE_ENV=development n                                                                         ode_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/l                                                                         aravel-mix/setup/webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ dev script 'node node_modules/cross-env/bin/cross-env.js NO                                                                         DE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --c                                                                         onfig=node_modules/laravel-mix/setup/webpack.config.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the  package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_                                                                         modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/larav                                                                         el-mix/setup/webpack.config.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /var/www/production/data/www/webvoyager.pro/npm-debug.log

I also tried to run npm install in different sequences, it always lights up in the work conf:

npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: [email protected]                                                                         1.1.1

On that link, people also have problems, but googling did not give results
OS ubuntu 16.04 LTS

Answer 1

update nodejs, npm