Fatal error: Uncaught Error: Class "Illuminate\Database\Connection" not found in C:\mywamp\sites\allsite\calcomposer\vendor\laravel\framework\src\Illuminate\Database\SqlServerConnection.php:13 Stack trace: #0 {main} thrown in C:\mywamp\sites\allsite\calcomposer\vendor\laravel\framework\src\Illuminate\Database\SqlServerConnection.php on line 13