Laravel 4.0 - Php Artisan Serve function not working after installing three public modules -

I am following this to establish Laravel correctly, and I am right before the beginning of Part 2 . The command php artisan service needs to be run out of the following error:

PHP Fatal Error: Class 'Roshan / Remote \ Remote Service Provider' / Seller Not Found 123 "Error": {"Type": "Symphony \ Component \ debug \ Exception \ FatalErrorException", "message": "Class' Illumination / Remote \" / "on / laravel / framework / src / Illuminate / Foundation / ProviderRepository.php Remote Service Service Provider 'Not Found', "File": "/ Vendor / Lirewell / Framework / src / Roshan / Foundation / Provider Repository Line 123 is shown below:

  Public function createProvider (app $ app, $ provider) {Php "," line ": 123}}   
 Return the new $ provider ($ App); // this line 123}   
 I previously had this problem and removed the 'script' section of my  composer.json  The solution was solved but now this error is found on this url.  
 
 
 Hi I found a solution on this URL.  
  
 Your composer. Script from Jason Delete