Class '\App\Models' not found

奇怪了，为什么我用Auth认证的时候会出现这个错误？
Symfony \ Component \ Debug \ Exception \FatalThrowableError (E_ERROR)

Class '\App\Models' not found

仔细检查了代码，没有任何问题啊

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use Auth;

class SessionsController extends Controller
{
    public function create()
    {
        return view('sessions.create');
    }

    public function store(Request $request)
    {
       $credentials = $this->validate($request, [
           'email' => 'required|email|max:255',
           'password' => 'required'
       ]);

       if (Auth::attempt($credentials)) {
           session()->flash('success', '欢迎回来！');
           return redirect()->route('users.show', [Auth::user()]);
       } else {
           session()->flash('danger', '很抱歉，您的邮箱和密码不匹配');
           return redirect()->back()->withInput();
       }
    }
}