Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\AppServ\Apache\2.4.69\htdocs\isha_security\database\migrations\2021_03_22_061733_create_chemical_label_sub_table.php:7 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.69\htdocs\isha_security\database\migrations\2021_03_22_061733_create_chemical_label_sub_table.php on line 7