Laravel 错误“ReflectionException”-“类 App\Http\Kernel 不存在”

Question

我试图使用我在学校开发一年的 laravel 项目上线，但遇到了一些问题。 在我的托管服务服务器上上传整个项目后，我的浏览器和 SSH shell 都出现了这些错误。

致命错误：在 /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Container/Container.php 中出现消息“Class App\Http\Kernel 不存在”的未捕获异常“ReflectionException”： 779 堆栈跟踪：#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/客户端/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/ /home/clients/ffa41f94063541f86a0fe6602a73caa1/myforms/vendor/laravel/framework/src/Illuminate/Container/Container.php 中的 ffa41f94063 位于第 779 行

我认为这可能与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 进行新安装
• composer dump-autoload
• composer update 顺便说一句，当我插入 composer update 时出现错误

如果我应该发布另一个可能有用的文件，请通知我。

提前感谢您的帮助。

Answer 1

在 composer.json 中更改：

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

到：

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

在服务器的源目录中，运行composer update，然后运行composer dump-autoload

Laravel 中的 PSR-4 查找相对于项目根目录的命名空间

Answer 2

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

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

Answer 3

在我的情况下，composer.json 缺少右括号关闭“{}”并且带有“psr-4”的行在错误的 json 段中。

1. 检查 composer.json 是否正确对齐“psr-4”，它应该是“autoload”部分的子项。
2. 删除供应商
3. 作曲家安装

好的

Answer 4

{
	"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"
	}
}