Answers for "laravel debugbar laravel 5.5"

laravel debugbar

composer require barryvdh/laravel-debugbar --dev
  
// config/app.php
// ServiceProviders
Barryvdh\Debugbar\ServiceProvider::class,
// Facades
'Debugbar' => Barryvdh\Debugbar\Facade::class,


php artisan vendor:publish --provider="Barryvdh\Debugbar\ServiceProvider"