如何使用消息 'Class log does not exist' 修复未捕获的异常 'ReflectionException'？

Question

我在 Windows Server 20012 R2 上遇到作曲家问题。我正在尝试部署一个网站，每次运行 composer install 或 composer update 我都会得到以下信息：

$ composer install
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Nothing to install or update
Generating autoload files
> Illuminate\Foundation\ComposerScripts::postInstall
> php artisan optimize
Script php artisan optimize handling the post-install-cmd event returned with an error


  [RuntimeException]
  Error Output:


install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-custom-installers] [--no-autoloader] [--no-scripts] [--no-progress] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--ignore-platform-reqs] [--] [<packages>]...

当我检查 php 错误日志 时，我发现以下内容：

[17-Jul-2016 08:04:58 UTC] PHP Fatal error:  Uncaught exception 'ReflectionException' with message 'Class log does not exist' in C:\PATH_TO_PROJECT\vendor\laravel\framework\src\Illuminate\Container\Container.php:734
Stack trace:
#0 C:\PATH_TO_PROJECT\vendor\laravel\framework\src\Illuminate\Container\Container.php(734): ReflectionClass->__construct('log')
#1 C:\PATH_TO_PROJECT\vendor\laravel\framework\src\Illuminate\Container\Container.php(629): Illuminate\Container\Container->build('log', Array)
#2 C:\PATH_TO_PROJECT\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(697): Illuminate\Container\Container->make('log', Array)
#3 C:\PATH_TO_PROJECT\vendor\laravel\framework\src\Illuminate\Container\Container.php(849): Illuminate\Foundation\Application->make('Psr\Log\LoggerI...')
#4 C:\PATH_TO_PROJECT\vendor\laravel\framework\src\Illuminate\ in C:\PATH_TO_PROJECT\vendor\laravel\framework\src\Illuminate\Container\Container.php on line 734

当我在 Ubuntu 服务器 上尝试同一个项目时，一切正常！我已经尝试了我可以在互联网上找到的所有答案，但对我没有任何帮助。关于如何解决这个问题的任何建议？为什么会这样？

windows 服务器 PHP 版本是 5.6。

composer.json 文件:

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.2.*",
        "intervention/image": "^2.3",
        "greggilbert/recaptcha": "2.*",
        "laravelcollective/html": "5.2.*",
        "vsch/laravel-translation-manager": "*"
    },
    "require-dev": {
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "0.9.*",
        "phpunit/phpunit": "~4.0",
        "symfony/css-selector": "2.8.*|3.0.*",
        "symfony/dom-crawler": "2.8.*|3.0.*"
    },
    "autoload": {
        "classmap": [
            "database"
        ],
        "psr-4": {
            "App\": "app/"
        },
         "files": ["app/Http/Helpers/helpers.php"]
    },
    "autoload-dev": {
        "classmap": [
            "tests/TestCase.php"
        ]
    },
    "scripts": {
        "post-root-package-install": [
            "php -r \"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"
    }
}

Answer 1

你试过了吗 composer dump-autoload?

你可以添加一个 class 没有 dump-autoload

Answer 2

我能想到的导致此错误发生的最常见原因如下：

Log class 在不包含在 USE 语句中的范围内被调用。
配置文件包含（解析）错误，这反过来又不允许您的应用程序找到日志 class。检查 Laravel 早期加载的文件，例如 app.php.

Answer 3

我能够通过删除 .env 文件中值中的任何 space 来解决这个问题，例如：

MAIL_PORT= 587
MAIL_FROM_NAME=ABC Medical

至：

MAIL_PORT=587
MAIL_FROM_NAME=ABCMedical

或使用引号：

MAIL_PORT=587
MAIL_FROM_NAME="ABC Medical"

Answer 4

我在不带引号的 .env 中传递带空格的值时出现此错误，我通过将值括在引号中修复了它。

如何使用消息 'Class log does not exist' 修复未捕获的异常 'ReflectionException'？

How to fix Uncaught exception 'ReflectionException' with message 'Class log does not exist'?

php

laravel

composer-php

windows-server-2012-r2