Repositories Not be Instantiated - php

Question

I'm trying to find out why I'm receiving this error. I'm following along. However the only difference is that at the time of the recording it was done with Laravel 4.25 and I am now using Laravel 5.0.
Repositories and Inheritance
BindingResolutionException in Container.php line 785:
Target [App\Repositories\User\UserRepository] is not instantiable.
<?php
namespace App\Http\Controllers;
use App\Http\Requests;
use App\Http\Controllers\Controller;
use App\Repositories\User\UserRepository;
use Illuminate\Http\Request;
class UsersController extends Controller {
private $userRepository;
public function __construct(UserRepository $userRepository) {
$this->userRepository = $userRepository;
}
/**
* Display a listing of the resource.
*
* #return Response
*/
public function index() {
$users = $this->userRepository->getAll();
return $users;
}
}
<?php
namespace App\Repositories\User;
use App\Repositories\EloquentRepository;
class EloquentUserRepository extends EloquentRepository implements UserRepository
{
private $model;
function __construct(User $model) {
$this->model = $model;
}
}
<?php
namespace App\Repositories\User;
interface UserRepository {
public function getAll();
}
<?php
namespace App\Repositories;
abstract class EloquentRepository {
public function getAll() {
return $this->model->all();
}
public function getById() {
return $this->model->findOrFail($id);
}
}

Answer 1

You are type hinting an interface, and not the class itself. This error is occurring because Laravel cannot bind an interface because the binding must be instantiable. Abstract classes or interfaces are not valid unless Laravel knows the concrete (instantiable) class to substitute in for the abstract class / interface.
You will need to bind the EloquentUserRepository to the interface:
App::bind('UserRepository', 'EloquentUserRepository');