install instructions about php-sf-flex-webpack-encore-vuejs HOT 3 CLOSED

cat package.json

grek@grek-Precision-T3600:/tmp$ composer create-project symfony/skeleton sf-flex-encore-vuejs
Installing symfony/skeleton (v4.1.4.2)
  - Installing symfony/skeleton (v4.1.4.2): Downloading (100%)         
Created project in sf-flex-encore-vuejs
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Package operations: 20 installs, 0 updates, 0 removals
  - Installing symfony/flex (v1.1.1): Loading from cache
  - Installing psr/cache (1.0.1): Loading from cache
  - Installing psr/container (1.0.0): Loading from cache
  - Installing psr/simple-cache (1.0.1): Loading from cache
  - Installing symfony/polyfill-mbstring (v1.9.0): Loading from cache
  - Installing symfony/console (v4.1.4): Loading from cache
  - Installing symfony/routing (v4.1.4): Loading from cache
  - Installing symfony/http-foundation (v4.1.4): Loading from cache
  - Installing symfony/event-dispatcher (v4.1.4): Loading from cache
  - Installing psr/log (1.0.2): Loading from cache
  - Installing symfony/debug (v4.1.4): Loading from cache
  - Installing symfony/http-kernel (v4.1.4): Loading from cache
  - Installing symfony/finder (v4.1.4): Loading from cache
  - Installing symfony/filesystem (v4.1.4): Loading from cache
  - Installing symfony/dependency-injection (v4.1.4): Loading from cache
  - Installing symfony/config (v4.1.4): Loading from cache
  - Installing symfony/cache (v4.1.4): Loading from cache
  - Installing symfony/framework-bundle (v4.1.4): Loading from cache
  - Installing symfony/yaml (v4.1.4): Loading from cache
  - Installing symfony/dotenv (v4.1.4): Loading from cache
Generating autoload files
Symfony operations: 4 recipes (83c54712fe6c87a1fc7f3c94a0f270e5)
  - Configuring symfony/flex (>=1.0): From github.com/symfony/recipes:master
  - Configuring symfony/framework-bundle (>=3.3): From github.com/symfony/recipes:master
  - Configuring symfony/console (>=3.3): From github.com/symfony/recipes:master
  - Configuring symfony/routing (>=4.0): From github.com/symfony/recipes:master
Executing script cache:clear [OK]
Executing script assets:install public [OK]

Some files may have been created or updated to configure your new packages.
Please review, edit and commit them: these files are yours.

              
 What's next? 
              

  * Run your application:
    1. Change to the project directory
    2. Create your code repository with the git init command
    3. Execute the php -S 127.0.0.1:8000 -t public command
    4. Browse to the http://localhost:8000/ URL.

       Quit the server with CTRL-C.
       Run composer require server --dev for a better web server.

  * Read the documentation at https://symfony.com/doc


grek@grek-Precision-T3600:/tmp$  cd /tmp/sf-flex-encore-vuejs
grek@grek-Precision-T3600:/tmp/sf-flex-encore-vuejs$ npm run init-project
npm ERR! path /tmp/sf-flex-encore-vuejs/package.json
npm ERR! code ENOENT
npm ERR! errno -2
npm ERR! syscall open
npm ERR! enoent ENOENT: no such file or directory, open '/tmp/sf-flex-encore-vuejs/package.json'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent 

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/grek/.npm/_logs/2018-09-04T15_41_13_645Z-debug.log
grek@grek-Precision-T3600:/tmp/sf-flex-encore-vuejs$ cat package.json
cat: package.json: Nie ma takiego pliku ani katalogu (file not exists)
grek@grek-Precision-T3600:/tmp/sf-flex-encore-vuejs$