Laravel 错误：未捕获的 ReflectionException：类 App\Http\Kernel 不存在

Posted 2023-03-14

【中文标题】Laravel 错误：未捕获的 ReflectionException：类 App\\Http\\Kernel 不存在

【英文标题】：Laravel Error : Uncaught ReflectionException: Class App\Http\Kernel does not existLaravel 错误：未捕获的 ReflectionException：类 App\Http\Kernel 不存在

【发布时间】：2018-01-03 08:08:21

【问题描述】：

我不知道我的 Laravel 5.3 项目做了什么，但我有这个错误：

致命错误：未捕获的 ReflectionException：类 App\Http\Kernel 不存在于 C:\laragon\www\BookTime\vendor\laravel\framework\src\Illuminate\Container\Container.php:729 堆栈跟踪：#0 C:\laragon\www\BookTime\vendor\laravel\framework\src\Illuminate\Container\Container.php(729): ReflectionClass->__construct('App\Http\Kernel') #1 C:\laragon\www\BookTime\vendor\laravel\framework\src\Illuminate\Container\Container.php(608): Illuminate\Container\Container->build('App\Http\Kernel') #2 C:\laragon\www\BookTime\vendor\laravel\framework\src\Illuminate\Container\Container.php(564): Illuminate\Container\Container->resolve('App\Http\Kernel', Array) #3 C:\laragon\www\BookTime\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(709)： Illuminate\Container\Container->makeWith('App\Http\Kernel', Array) 4 C:\laragon\www\BookTime\vendor\laravel\framework\src\Illuminate\Container\Container.php(248)： Illuminate\Foundation\Application->makeWith('App\Http\Kernel', 数组）#5 C:\laragon\www\BookTime\vendor\laravel\f in C:\laragon\www\BookTime\vendor\laravel\framework\src\Illuminate\Container\Container.php 在第 729 行

操作系统：Windows 10 本地主机：Laragon PHP版本：5.6.4

这是我的 package.json

     "name": "laravel/laravel",
  "description": "The Laravel Framework.",
  "keywords": ["framework", "laravel"],
  "license": "MIT",
  "type": "project",
  "require": 
    "php": ">=5.6.4",
    "laravel/framework": "5.3.*"
  ,
  "require-dev": 
    "fzaninotto/faker": "~1.4",
    "mockery/mockery": "0.9.*",
    "phpunit/phpunit": "~5.0",
    "symfony/css-selector": "3.1.*",
    "symfony/dom-crawler": "3.1.*"
  ,
  "autoload": 
    "classmap": [
      "database"
    ],
    "psr-4": 
      "App\\": "app/"
    
  ,
  "autoload-dev": 
    "classmap": [
      "tests/TestCase.php"
    ]
  ,
  "scripts": 
    "post-root-package-install": [
      "php -r \"file_exists('.env') || copy('.env.example', '.env');\""
    ],
    "post-create-project-cmd": [
      "php artisan key:generate"
    ],
    "post-install-cmd": [
      "Illuminate\\Foundation\\ComposerScripts::postInstall",
      "php artisan optimize"
    ],
    "post-update-cmd": [
      "Illuminate\\Foundation\\ComposerScripts::postUpdate",
      "php artisan optimize"
    ]
  ,
  "config": 
    "preferred-install": "dist",
    "sort-packages": true
  

我在 app.php 中的提供者

[

        /*
         * Laravel Framework Service Providers...
         */
        Collective\html\HtmlServiceProvider::class,
        Barryvdh\Debugbar\ServiceProvider::class,
        Illuminate\Auth\AuthServiceProvider::class,
        Illuminate\Broadcasting\BroadcastServiceProvider::class,
        Illuminate\Bus\BusServiceProvider::class,
        Illuminate\Cache\CacheServiceProvider::class,
        Illuminate\Foundation\Providers\ConsoleSupportServiceProvider::class,
        Illuminate\Cookie\CookieServiceProvider::class,
        Illuminate\Database\DatabaseServiceProvider::class,
        Illuminate\Encryption\EncryptionServiceProvider::class,
        Illuminate\Filesystem\FilesystemServiceProvider::class,
        Illuminate\Foundation\Providers\FoundationServiceProvider::class,
        Illuminate\Hashing\HashServiceProvider::class,
        Illuminate\Mail\MailServiceProvider::class,
        Illuminate\Notifications\NotificationServiceProvider::class,
        Illuminate\Pagination\PaginationServiceProvider::class,
        Illuminate\Pipeline\PipelineServiceProvider::class,
        Illuminate\Queue\QueueServiceProvider::class,
        Illuminate\Redis\RedisServiceProvider::class,
        Illuminate\Auth\Passwords\PasswordResetServiceProvider::class,
        Illuminate\Session\SessionServiceProvider::class,
        Illuminate\Translation\TranslationServiceProvider::class,
        Illuminate\Validation\ValidationServiceProvider::class,
        Illuminate\View\ViewServiceProvider::class,

        /*
         * Package Service Providers...
         */
        Laravel\Tinker\TinkerServiceProvider::class,

        /*
         * Application Service Providers...
         */
        App\Providers\AppServiceProvider::class,
        App\Providers\AuthServiceProvider::class,
        // App\Providers\BroadcastServiceProvider::class,
        App\Providers\EventServiceProvider::class,
        App\Providers\RouteServiceProvider::class,

    ],

    /*
    |--------------------------------------------------------------------------
    | Class Aliases
    |--------------------------------------------------------------------------
    |
    | This array of class aliases will be registered when this application
    | is started. However, feel free to register as many as you wish as
    | the aliases are "lazy" loaded so they don't hinder performance.
    |
    */

    'aliases' => [
        'Form' => Collective\Html\FormFacade::class,
        'Debugbar' => Barryvdh\Debugbar\Facade::class,
        'Html' => Collective\Html\HtmlFacade::class,
        'App' => Illuminate\Support\Facades\App::class,
        'Artisan' => Illuminate\Support\Facades\Artisan::class,
        'Auth' => Illuminate\Support\Facades\Auth::class,
        'Blade' => Illuminate\Support\Facades\Blade::class,
        'Broadcast' => Illuminate\Support\Facades\Broadcast::class,
        'Bus' => Illuminate\Support\Facades\Bus::class,
        'Cache' => Illuminate\Support\Facades\Cache::class,
        'Config' => Illuminate\Support\Facades\Config::class,
        'Cookie' => Illuminate\Support\Facades\Cookie::class,
        'Crypt' => Illuminate\Support\Facades\Crypt::class,
        'DB' => Illuminate\Support\Facades\DB::class,
        'Eloquent' => Illuminate\Database\Eloquent\Model::class,
        'Event' => Illuminate\Support\Facades\Event::class,
        'File' => Illuminate\Support\Facades\File::class,
        'Gate' => Illuminate\Support\Facades\Gate::class,
        'Hash' => Illuminate\Support\Facades\Hash::class,
        'Lang' => Illuminate\Support\Facades\Lang::class,
        'Log' => Illuminate\Support\Facades\Log::class,
        'Mail' => Illuminate\Support\Facades\Mail::class,
        'Notification' => Illuminate\Support\Facades\Notification::class,
        'Password' => Illuminate\Support\Facades\Password::class,
        'Queue' => Illuminate\Support\Facades\Queue::class,
        'Redirect' => Illuminate\Support\Facades\Redirect::class,
        'Redis' => Illuminate\Support\Facades\Redis::class,
        'Request' => Illuminate\Support\Facades\Request::class,
        'Response' => Illuminate\Support\Facades\Response::class,
        'Route' => Illuminate\Support\Facades\Route::class,
        'Schema' => Illuminate\Support\Facades\Schema::class,
        'Session' => Illuminate\Support\Facades\Session::class,
        'Storage' => Illuminate\Support\Facades\Storage::class,
        'URL' => Illuminate\Support\Facades\URL::class,
        'Validator' => Illuminate\Support\Facades\Validator::class,
        'View' => Illuminate\Support\Facades\View::class,

    ],

请问我该如何解决这个问题？

【问题讨论】：

提供有关您的设置的更多信息。哪个操作系统 - 哪个 php 版本 - 你是在虚拟主机后面还是在子目录中运行 laravel？ Apache 还是 nginx？你有权限吗？

试试composer dump-autoload

@ArigiWiratama 我已经尝试过了，我有同样的错误：x

此类问题通常是由 .env 变量中带有空格引起的。

我也遇到了同样的问题，目前有解决办法吗？

【参考方案1】：

这通常可以通过这样做来解决：

php artisan config:clear
php artisan cache:clear
composer dump-autoload 

【讨论】：

当我这样做“php artisan config:clear”时，我的 cmd 中显示错误

@ArigiWiratama, Sletheren 在我的第一篇文章中我提到了我的错误

尝试先运行composer update，然后运行composer dump-autoload

这些命令的结果是什么？它们运行正常吗？

在项目失败之前你所做的最后一次更改是什么？