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Composer在Windows 10上安装laravel/installer出错。

laravelcomposer-phplaravel-8
3

我正在使用Windows 10和Composer。当我尝试安装Laravel安装程序时，出现了错误。非常感谢您提供任何帮助。以下是在我尝试安装时的完整输出：

$ composer global require laravel/installer
Changed current directory to C:/Users/rudy/AppData/Roaming/Composer
Using version ^4.1 for laravel/installer
./composer.json has been created
Running composer update laravel/installer
Loading composer repositories with package information
Updating dependencies
Lock file operations: 12 installs, 0 updates, 0 removals
  - Locking laravel/installer (v4.1.0)
  - Locking psr/container (1.0.0)
  - Locking symfony/console (v5.1.8)
  - Locking symfony/polyfill-ctype (v1.20.0)
  - Locking symfony/polyfill-intl-grapheme (v1.20.0)
  - Locking symfony/polyfill-intl-normalizer (v1.20.0)
  - Locking symfony/polyfill-mbstring (v1.20.0)
  - Locking symfony/polyfill-php73 (v1.20.0)
  - Locking symfony/polyfill-php80 (v1.20.0)
  - Locking symfony/process (v5.1.8)
  - Locking symfony/service-contracts (v2.2.0)
  - Locking symfony/string (v5.1.8)
Writing lock file
Installing dependencies from lock file (including require-dev)
Package operations: 12 installs, 0 updates, 0 removals
  - Installing symfony/polyfill-php80 (v1.20.0): Extracting archive
  - Installing symfony/process (v5.1.8): Extracting archive
  - Installing symfony/polyfill-mbstring (v1.20.0): Extracting archive
  - Installing symfony/polyfill-intl-normalizer (v1.20.0): Extracting archive
  - Installing symfony/polyfill-intl-grapheme (v1.20.0): Extracting archive
  - Installing symfony/polyfill-ctype (v1.20.0): Extracting archive
  - Installing symfony/string (v5.1.8): Extracting archive
  - Installing psr/container (1.0.0): Extracting archive
  - Installing symfony/service-contracts (v2.2.0): Extracting archive
  - Installing symfony/polyfill-php73 (v1.20.0): Extracting archive
  - Installing symfony/console (v5.1.8): Extracting archive
  - Installing laravel/installer (v4.1.0): Extracting archive
    Skipped installation of bin bin/laravel for package laravel/installer: name conflicts with an existing file
6 package suggestions were added by new dependencies, use `composer suggest` to see details.
Generating autoload files

Installation failed, deleting ./composer.json.


  [RuntimeException]
  Could not scan for classes inside "C:\Users\rudy\AppData\Roaming\Composer\vendor/symfony/polyfill-php73/Resources/s
  tubs" which does not appear to be a file nor a folder


require [--dev] [--dry-run] [--prefer-source] [--prefer-dist] [--fixed] [--no-suggest] [--no-progress] [--no-update] [--no-install] [--no-scripts] [--update-no-dev] [-w|--update-with-dependencies] [-W|--update-with-all-dependencies] [--with-dependencies] [--with-all-dependencies] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] [--] [<packages>]...
6个回答
3

您遇到了与symfony/polyfill相关的问题
手动删除vendor和composer.lock

或者
清理composer缓存对我有用：

composer clearcache

然后安装您的软件包

感谢您的回复。不幸的是，这些方法都对我无效。所以我尝试第n次安装Composer.exe，然后运行laravel/installer，这次成功了。 - TopAngler
不用谢，因为如果有插件错误，composer.exe会卡住。所以在你运行任何东西之后，请习惯于使用 php artisan cache:clear 和 php artisan config:clear 然后再运行 composer clearcache。 - Adhitya
3

当你的本地环境中的文件损坏时，通常会发生这种情况。尝试清除缓存并重新安装软件包。

$ composer clearcache
$ composer global require laravel/installer
非常感谢您的快速回复，但那并没有起作用。清除缓存后仍然出现相同的错误。 - TopAngler
0
你可以尝试下载并安装composer.exe。
这可能更适合作为评论而不是问题的答案。 - marcogmonteiro
发表评论需要50个声望值。 - Rahul Gupta
0
在发布这篇文章之前，我重新安装了4次Composer。在尝试上述解决方案无果后，我又尝试重新安装Composer，然后运行了laravel/installer - 一切都正常工作了。感谢所有抽出时间回复的人。
0

清除缓存对我也起作用了。 以下是我的操作步骤：

  1. composer clearcache
  2. composer global require laravel/installer 然后安装成功了
0
对我来说，问题出在7zip上。 Composer使用了来自Lua的7z.exe（我之前安装过）。 当我从官方网站安装了7z并更新了PATH变量后，这个错误就解决了。
虽然我无法提供解释，但我不确定发生了什么……
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