Problem during laravel project php artisan migarte

I try to migrate the Laravel project from one host to another host. After downloading the source code, I put the source code at XAMPP htdocs, ran composer update, and composer install, all flow looks nice and like no problem. however when I want to perform PHP artisan migrate, the following error prompt:

C:\xamppnew\htdocs\ssg_website>php artisan migrate PHP Warning: require(C:\xamppnew\htdocs\ssg_website\vendor\composer/../../src/Illuminate/Foundation/helpers.php): Failed to open stream: No such file or directory in C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php on line 55

Warning: require(C:\xamppnew\htdocs\ssg_website\vendor\composer/../../src/Illuminate/Foundation/helpers.php): Failed to open stream: No such file or directory in C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php on line 55 PHP Fatal error: Uncaught Error: Failed opening required 'C:\xamppnew\htdocs\ssg_website\vendor\composer/../../src/Illuminate/Foundation/helpers.php' (include_path='C:\xamppnew\php\PEAR') in C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php:55 Stack trace: #0 C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php(38): composerRequire2e6ddbec33538feb089798c17e96a50d('f0906e6318348a7...', 'C:\xamppnew\htd...') #1 C:\xamppnew\htdocs\ssg_website\vendor\autoload.php(25): ComposerAutoloaderInit2e6ddbec33538feb089798c17e96a50d::getLoader() #2 C:\xamppnew\htdocs\ssg_website\bootstrap\autoload.php(17): require('C:\xamppnew\htd...') #3 C:\xamppnew\htdocs\ssg_website\artisan(16): require('C:\xamppnew\htd...') #4 {main} thrown in C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php on line 55

Fatal error: Uncaught Error: Failed opening required 'C:\xamppnew\htdocs\ssg_website\vendor\composer/../../src/Illuminate/Foundation/helpers.php' (include_path='C:\xamppnew\php\PEAR') in C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php:55 Stack trace: #0 C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php(38): composerRequire2e6ddbec33538feb089798c17e96a50d('f0906e6318348a7...', 'C:\xamppnew\htd...') #1 C:\xamppnew\htdocs\ssg_website\vendor\autoload.php(25): ComposerAutoloaderInit2e6ddbec33538feb089798c17e96a50d::getLoader() #2 C:\xamppnew\htdocs\ssg_website\bootstrap\autoload.php(17): require('C:\xamppnew\htd...') #3 C:\xamppnew\htdocs\ssg_website\artisan(16): require('C:\xamppnew\htd...') #4 {main} thrown in C:\xamppnew\htdocs\ssg_website\vendor\composer\autoload_real.php on line 55

Any suggestion to solve this problems?