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"

composer require barryvdh/laravel-debugbar --dev
php artisan vendor:publish --provider="Barryvdh\Debugbar\ServiceProvider"

'debug' => env('APP_DEBUG', false),

Debugbar::info($object);
Debugbar::error('Error!');
Debugbar::warning('Watch out…');
Debugbar::addMessage('Another message', 'mylabel');

Barryvdh\Debugbar\ServiceProvider::class,

if (env('APP_DEBUG')) {
 $app->register(Barryvdh\Debugbar\LumenServiceProvider::class);
}