在Container.php第572行中出现了一个反射异常:类请求不存在

我收到错误:

ReflectionException在Container.php第572行:类请求没有存在

查看我的routes.php页面的代码。

$app->get('/records', ['middleware' => 'auth', function (Request $request) {
    $user = Auth::user();
    return json_encode($user);
}]);

我遵循了Lumen网站上的文档。用取消相关行的注释，bootstrap/app.php

<?php
namespace App'Http'Middleware;
use Closure;
use Illuminate'Contracts'Auth'Factory as Auth;
class Authenticate
{
    protected $auth;
    public function __construct(Auth $auth)
    {
        $this->auth = $auth;
    }
    public function handle($request, Closure $next, $guard = null)
    {
        if ($this->auth->guard($guard)->guest()) {
            return response()->json('unauthorized', 401);
        }
        return $next($request);
    }
}

和AuthServiceProvider文件:

<?php
namespace App'Providers;
use App'User;
use Illuminate'Support'Facades'Gate;
use Illuminate'Support'ServiceProvider;
class AuthServiceProvider extends ServiceProvider
{
    public function register()
    {
    }
    public function boot()
    {
        $this->app['auth']->viaRequest('api', function ($request) {
            if ($request->header('Authorization')) {
                $user = User:: where('api_token', '=', substr($request->header('Authorization'), 6))->first();
                return $user;
            }
            return null;
        });
    }
}