最近我了解了Laravel 4.2。然后我切换到Laravel 5。一直以来，我一直在使用 composer 添加另一个依赖项和东西，我完全没有遇到任何问题。

上周四，我使用 创建了一个新项目。一切顺利。composer create-project laravel/laravel dir_name --prefer-dist

但从星期五开始，我什么也做不了。每次我尝试创建新项目，更新依赖项或执行任何操作时，都会有很长的等待（几乎就像冻结一样），然后出现错误。它们通常与 有关 或 有问题。HTTP request failedpackagist.org

在工作中，我没有任何问题。我的朋友也没有。它在我的PC上工作，突然停止了。请帮忙。

C:\xampp\htdocs\dir_name>composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
The "http://packagist.org/p/symfony/routing$0b411061e305b2d7a108caca01c21b859b6a2be133eff320b93e64d8
c5759e2b.json" file could not be downloaded: failed to open stream: HTTP request failed!
http://packagist.org could not be fully loaded, package information was loaded from the local cache
and may be out of date

[here freezes for good (more than 20 minutes), killed]

我的作曲家是最新的：

C:\xampp\htdocs\dir_name>composer self-update
You are already using composer version 9fb2d4f2d642a0749decb41bc2fe4be2bf8bef7a.

C:\xampp\htdocs\dir_name>

那就是：composer update -vvv

C:\xampp\htdocs\dir_name>composer update -vvv
Reading ./composer.json
Loading config file C:/Users/Forien/AppData/Roaming/Composer/config.json
Loading config file C:/Users/Forien/AppData/Roaming/Composer/auth.json
Loading config file ./composer.json
Executing command (CWD): git describe --exact-match --tags
Executing command (CWD): git branch --no-color --no-abbrev -v
Executing command (CWD): hg branch
Executing command (CWD): svn info --xml
Failed to initialize global composer: Composer could not find the config file: C:/Users/Forien/AppDa
ta/Roaming/Composer/composer.json
To initialize a project, please create a composer.json file as described in the https://getcomposer.
org/ "Getting Started" section
Loading composer repositories with package information
Downloading https://packagist.org/packages.json

[freeze for over 15 minutes here, killed]

在家里，我在路由器后面，但没有我所知道的代理。我不知道发生了什么变化。截至 - 即使有全新的清洁从，更新也不会正常启动。composer.json.jsonlaravel/laravel

任何帮助赞赏。您有任何想法为什么会发生这种情况或如何解决这个问题吗？

编辑

composer diagnose
Checking composer.json: OK
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity: FAIL
[Composer\Downloader\TransportException] The "https://packagist.org/packages.json" file could not be
 downloaded: SSL: Handshake timed out
Failed to enable crypto
failed to open stream: operation failed
Checking github.com oauth access: OK
Checking disk free space: OK
Checking composer version: OK

Composer.json

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "laravel/framework": "5.0.*"
    },
    "require-dev": {
        "phpunit/phpunit": "~4.0",
        "phpspec/phpspec": "~2.1",
        "filp/whoops": "^1.1"
    },
    "autoload": {
        "classmap": [
            "database"
        ],
        "psr-4": {
            "App\\": "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"
        ]
    }
}