Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/aplikasiposinfo/public_html/posdira.samarinda.app/database/migrations/old/2019_07_08_101655_create_derived_variables_table.php:7 Stack trace: #0 {main} thrown in /home/aplikasiposinfo/public_html/posdira.samarinda.app/database/migrations/old/2019_07_08_101655_create_derived_variables_table.php on line 7