在 window 10 中安装 laravel 安装程序时出错

Question

我正在使用 Windows 10 并且安装了 composer。当我尝试使用此命令全局安装 laravel 安装程序时：

composer global require laravel/installer

[Composer\Downloader\TransportException]
The "https://repo.packagist.org/packages.json" file could not be downloaded: 
failed to open stream: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

表示没有下载包。我没有使用任何代理服务器。 Composer诊断结果如下：

Checking platform settings: OK
Checking git settings: OK
Checking http connectivity to packagist: 
[Composer\Downloader\TransportException] The "http://repo.packagist.org/packages.json" file could not be downloaded: failed to open stream: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

Checking https connectivity to packagist: 
[Composer\Downloader\TransportException] The "https://repo.packagist.org/packages.json" file could not be downloaded: failed to open stream: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

Checking github.com rate limit: FAIL
[Composer\Downloader\TransportException] The 
"https://api.github.com/rate_limit" file could not be downloaded: failed to 
open stream: A connection attempt failed because the connected party did not 
properly respond after a period of time, or established connection failed 
because connected host has failed to respond.

Checking disk free space: OK
Checking pubkeys:
Tags Public Key Fingerprint: 57815BA2 7E54DC31 7ECC7CC5 573090D0  87719BA6 8F3BB723 4E5D42D0 84A14642
Dev Public Key Fingerprint: 4AC45767 E5EC2265 2F0C1167 CBBB8A2B  0C708369 153E328C AD90147D AFE50952 OK
Checking composer version: OK
Composer version: 1.8.0
PHP version: 7.2.1
PHP binary path: E:\xampp\php\php.exe

Answer 1

以下步骤将解决大多数 "packages.json file could not be downloaded" Composer 问题：

验证您的防火墙设置。为初学者禁用防火墙
启用PHP OpenSSL 扩展
启用 PHP allow_url_fopen 指令

注意：确保您在修改 php.ini 文件时使用正确的 PHP 版本和环境（apache、CLI 等）。

Answer 2

我相信您面临着与 this 相同的问题并且 this。 Composer 推荐以下内容：

We recommend you fix your IPv6 setup. If that is not possible, you can try the following workarounds:

遗憾的是，对于 Windows 解决方法，它说如果您的设置无法修复或者如果这不能解决问题，那么您应该彻底禁用 IPv6，这是一个常见的答案，也被建议 here（但是视频已被删除所以我做了这个 post 以获得可靠的答案）。

（我特意将 windows 对齐，以便您可以看到屏幕上的步骤）

打开控制面板
导航至网络和 Internet
单击网络和共享中心
在 window 的左侧单击 更改适配器设置
找到您的适配器并右键单击它打开属性
找到 Internet 协议版本 6 (TCP/IPv6) 并取消选中它
单击确定

编辑#1

建议here是：

Install a Windows level VPN or proxy switcher that acts as the default route if you need to change your IP (effectively). Try CyberGhost

这似乎解决了 OP 的问题。

Answer 3

您使用任何杀毒软件吗？如果是，请尝试禁用然后检查。

Mcafe 有时会阻止下载 packagist。

Answer 4

要解决此问题，请在安装之前，通过运行在 cli 上执行以下命令，将 composer 配置为使用 https 存储库Laravel

composer config -g repo.packagist composer https://packagist.org

Answer 5

我注意到在更换网络时也会发生这种情况（例如从一个办公室搬到另一个办公室）。我设法解决它的方法是重新启动 docker 容器。这种情况我已经发生过 2 次了，同样的解决方案有所帮助。

Answer 6

您需要做的就是运行您的 cmd/git 管理员身份，无需卸载任何东西。

在 window 10 中安装 laravel 安装程序时出错

Getting error while installing laravel installer in window 10

php

composer-php

laravel-5.5