I upgrated my project from laravel 5.4 to laravel 5.5 ,
I dont have any problem in local env but in server i get this exception ,
I searched a lot and i know this issue may be duplicated but no solutions solved my problem!
How can i not registering dusk when environment is production?
i wrote this code in AppServiceProvider.php :
public function register()
{
    // Dusk, if env is appropriate
    if ($this->app->environment('local', 'testing')) {
        $this->app->register(DuskServiceProvider::class);
    }
}
but it seems not working. can anyone help?
EDITED : my composer.json file:
 "require-dev": {
    "filp/whoops": "~2.0",
    "fzaninotto/faker": "~1.4",
    "mockery/mockery": "1.*",
    "phpunit/phpunit": "^7.0.3",
    "symfony/css-selector": "4.0.*",
    "symfony/dom-crawler": "4.0.0",
    "barryvdh/laravel-ide-helper": "^2.4",
    "laravel/dusk": "^2.0"
  },
The Exception is :
Exception
It is unsafe to run Dusk in production.
 
     
     
     
    