Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Relations\Relation" not found in G:\projects\edutalk-api\vendor\laravel\framework\src\Illuminate\Database\Eloquent\Relations\HasManyThrough.php:15 Stack trace: #0 {main} thrown in G:\projects\edutalk-api\vendor\laravel\framework\src\Illuminate\Database\Eloquent\Relations\HasManyThrough.php on line 15