Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\WebServer\htdocs\bookshelf\database\migrations\2017_04_20_185112_add_revision_counts.php:8 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\database\migrations\2017_04_20_185112_add_revision_counts.php on line 8