Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/nextgenc/shieldlink.app/inventory/database/migrations/2012_12_06_225988_migration_cartalyst_sentry_install_throttle.php:22 Stack trace: #0 {main} thrown in /home/nextgenc/shieldlink.app/inventory/database/migrations/2012_12_06_225988_migration_cartalyst_sentry_install_throttle.php on line 22