Fatal error: Class 'Illuminate\Database\Migrations\Migration' not found in /var/www/html/dev/spa/app/database/migrations/2013_09_13_180611_create_users_table.php on line 6

Call Stack:
    0.0003     243040   1. {main}() /var/www/html/dev/spa/app/database/migrations/2013_09_13_180611_create_users_table.php:0