Fatal error: Uncaught Error: Class 'League\Fractal\Serializer\SerializerAbstract' not found in D:\svn\bitfx\vendor\league\fractal\src\Serializer\ArraySerializer.php:18 Stack trace: #0 {main} thrown in D:\svn\bitfx\vendor\league\fractal\src\Serializer\ArraySerializer.php on line 18