Fatal error: Uncaught Error: Class 'Illuminate\Support\ServiceProvider' not found in C:\xampp7\htdocs\sigpkl\vendor\laravel\socialite\src\SocialiteServiceProvider.php:9 Stack trace: #0 {main} thrown in C:\xampp7\htdocs\sigpkl\vendor\laravel\socialite\src\SocialiteServiceProvider.php on line 9