Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/digitalproduct/public_html/projectmanagementsoftware/database/migrations/2019_03_08_965158_alter_invoice_project_id_null_table.php:5 Stack trace: #0 {main} thrown in /home/digitalproduct/public_html/projectmanagementsoftware/database/migrations/2019_03_08_965158_alter_invoice_project_id_null_table.php on line 5