Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Relations\HasOneOrManyThrough" not found in C:\WebServer\htdocs\bookshelf\vendor\laravel\framework\src\Illuminate\Database\Eloquent\Relations\HasManyThrough.php:16 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\laravel\framework\src\Illuminate\Database\Eloquent\Relations\HasManyThrough.php on line 16