Laravel 错误 'ReflectionException' - 'Class App\Http\Kernel does not exist'

Question

我试图开始一个 laravel 项目，这是我一年前在学校开发的，但我运行遇到了一些问题。将整个项目上传到我的托管服务服务器后，我的浏览器和 SSH shell.

出现了这些错误

Fatal error: Uncaught exception 'ReflectionException' with message 'Class App\Http\Kernel does not exist' in /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Container/Container.php:779 Stack trace: #0 /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Container/Container.php(779): ReflectionClass->__construct('App\Http\Kernel') #1 /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Container/Container.php(659): Illuminate\Container\Container->build('App\Http\Kernel', Array) #2 /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(644): Illuminate\Container\Container->make('App\Http\Kernel', Array) #3 /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Container/Container.php(229): Illuminate\Foundation\Application->make('App\Http\Kernel', Array) #4 /home/clients/ffa41f94063 in /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Container/Container.php on line 779

我觉得可能和我的命名空间配置有关，因为我还没有完全理解。

这是我的 composer.json 文件：

{
 "name": "laravel/laravel",
 "description": "The Laravel Framework.",
 "keywords": ["framework", "laravel"],
 "license": "MIT",
 "type": "project",
 "require": {
  "laravel/framework": "5.0.*",
  "illuminate/html": "5.*",
  "barryvdh/laravel-dompdf": "0.5.*",
  "guzzlehttp/guzzle": "~4.0"

 },
 "require-dev": {
  "phpunit/phpunit": "~4.0",
  "phpspec/phpspec": "~2.1"
 },
 "autoload": {
  "classmap": [
   "database"
  ],
  "psr-4": {
   "App\": "myforms/app/"
  }
 },
 "autoload-dev": {
  "classmap": [
   "tests/TestCase.php"
  ]
 },
 "scripts": {
  "post-install-cmd": [
   "php artisan clear-compiled",
   "php artisan optimize"
  ],
  "post-update-cmd": [
   "php artisan clear-compiled",
   "php artisan optimize"
  ],
  "post-create-project-cmd": [
   "php -r \"copy('.env.example', '.env');\"",
   "php artisan key:generate"
  ]
 },
 "config": {
  "preferred-install": "dist"
 }
}

我已经做了什么：

删除 /vendor 并使用 composer install
composer dump-autoload
composer update 顺便说一句，当我插入 composer update

如果我应该 post 另一个可能有用的文件，请通知我。

在此先感谢您的帮助。

Answer 1

在composer.json中更改：

 "psr-4": {
        "App\": "myforms/app/"
    }

至：

 "psr-4": {
        "App\": "app/"
    }

在服务器上，在您的源目录中，运行 composer update 然后 composer dump-autoload

Laravel 中的 PSR-4 查找相对于项目根目录的名称空间

Answer 2

在我的例子中 composer.json 缺少正确的括号关闭“{ }”并且带有 "psr-4" 的行在错误的 json 段中。

检查 composer.json 是否正确对齐 "psr-4" 它应该是 "autoload" 部分的子部分。
删除供应商
作曲家安装

好的

Answer 3

{
 "name": "laravel/laravel",
 "description": "The Laravel Framework.",
 "keywords": ["framework", "laravel"],
 "license": "MIT",
 "type": "project",
 "require": {
  "laravel/framework": "5.0.*",
  "illuminate/html": "5.*",
  "barryvdh/laravel-dompdf": "0.5.*",
  "guzzlehttp/guzzle": "~4.0"

 },
 "require-dev": {
  "phpunit/phpunit": "~4.0",
  "phpspec/phpspec": "~2.1"
 },
 "autoload": {
  "classmap": [
   "database"
  ],
  "psr-4": {
   "App\": "myforms/app/"
  }
 },
 "autoload-dev": {
  "classmap": [
   "tests/TestCase.php"
  ]
 },
 "scripts": {
  "post-install-cmd": [
   "php artisan clear-compiled",
   "php artisan optimize"
  ],
  "post-update-cmd": [
   "php artisan clear-compiled",
   "php artisan optimize"
  ],
  "post-create-project-cmd": [
   "php -r \"copy('.env.example', '.env');\"",
   "php artisan key:generate"
  ]
 },
 "config": {
  "preferred-install": "dist"
 }
}

Answer 4

检查 console/kernel.php 是否在 app 文件夹内，如果不在，它可能在您的 laravelApp 内。

如果是，请将 console/kernel.php 移动到 app- 文件夹。

Laravel 错误 'ReflectionException' - 'Class App\Http\Kernel does not exist'

Laravel error 'ReflectionException' - 'Class App\Http\Kernel does not exist'

php

namespaces

laravel

psr-4