Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/edmedu/www/edmeducation.co.kr/tw-dev/database/migrations/2019_12_26_023653_add_course_name_to_process.php:7 Stack trace: #0 {main} thrown in /home/edmedu/www/edmeducation.co.kr/tw-dev/database/migrations/2019_12_26_023653_add_course_name_to_process.php on line 7