Route.php第286行中的ReflectionException：Class App \ Repositories \ TagRepository不存在

Question

这是我的类TagRepository：

<?php
namespace App\Repositories;

use App\Tag;
use Illuminate\Support\Str;``
use App\Repositories\TagRepository;

class TagRepository
{

    protected $tag;

    public function __construct(Tag $tag)
    {
        $this->tag = $tag;
    }

    public function store($post, $tags)
{
    $tags = explode(',', $tags);

    foreach ($tags as $tag) {

        $tag = trim($tag);

        $tag_url = Str::slug($tag);

        $tag_ref = $this->tag->where('tag_url', $tag_url)->first();

        if(is_null($tag_ref)) 
        {
            $tag_ref = new $this->tag([
                'tag' => $tag,
                'tag_url' => $tag_url
            ]); 

            $post->tags()->save($tag_ref);

        } else {

            $post->tags()->attach($tag_ref->id);

        }

    }

}

}

and this my controller

    <?php 

namespace App\Http\Controllers;

use App\Repositories\PostRepository;

use App\Http\Requests\PostRequest;
use App\Repositories\TagRepository;

class PostController extends Controller
{

    protected $postRepository;

    protected $nbrPerPage = 4;

    public function __construct(PostRepository $postRepository)
    {
        $this->middleware('auth', ['except' => ['index', 'indexTag']]);
        $this->middleware('admin', ['only' => 'destroy']);

        $this->postRepository = $postRepository;
    }

    public function index()
    {
        $posts = $this->postRepository->getWithUserAndTagsPaginate($this->nbrPerPage);
        $links = $posts->render();

        return view('posts.liste', compact('posts', 'links'));
    }

    public function create()
    {
        return view('posts.add');
    }

    public function store(PostRequest $request, TagRepository $tagRepository)
    {
        $inputs = array_merge($request->all(), ['user_id' => $request->user()->id]);

        $post = $this->postRepository->store($inputs);

        if(isset($inputs['tags'])) 
        {
            $tagRepository->store($post, $inputs['tags']);
        }

        return redirect(route('post.index'));
    }


    public function destroy($id)
    {
        $this->postRepository->destroy($id);

        return redirect()->back();
    }

    public function indexTag($tag)
    {
        $posts = $this->postRepository->getWithUserAndTagsForTagPaginate($tag, $this->nbrPerPage);
        $links = $posts->render();

        return view('posts.liste', compact('posts', 'links'))
        ->with('info', 'Résultats pour la recherche du mot-clé : ' . $tag);
    }

}`

这是我的要求：

<?php

namespace App\Http\Requests;

use App\Http\Requests\Request;
use App\Repositories\TagRepository;
class PostRequest extends Request
{

    public function authorize()
    {
        return true;
    }

    public function rules()
    {
        return [
            'titre' => 'required|max:80',
            'contenu' => 'required',
            'tags' => ['Regex:/^[A-Za-z0-9-éèàù]{1,50}?(,[A-Za-z0-9-éèàù]{1,50})*$/']
        ];
    }

}