更新 Composer 时出错

【问题标题】：getting error while updating Composer更新 Composer 时出错
【发布时间】：2016-08-27 00:23:25
【问题描述】：

我在 Laravel-5.1 有一个项目，我已将我的平台从 win10 更改为 Ubuntu。

显示错误：

使用包信息加载作曲家存储库

更新依赖（包括require-dev）

您的需求无法解决为一组可安装的软件包。

  Problem 1
- laravel/framework v5.2.9 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.8 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.7 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.6 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.5 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.4 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.31 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.30 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.3 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.29 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.28 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.27 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.26 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.25 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.24 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.23 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.22 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.21 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.20 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.2 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.19 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.18 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.17 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.16 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.15 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.14 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.13 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.12 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.11 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.10 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.1 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.2.30 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- Installation request for laravel/framework 5.2.* -> satisfiable by laravel/framework[v5.2.0, v5.2.1, v5.2.10, v5.2.11, v5.2.12, v5.2.13, v5.2.14, v5.2.15, v5.2.16, v5.2.17, v5.2.18, v5.2.19, v5.2.2, v5.2.20, v5.2.21, v5.2.22, v5.2.23, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.29, v5.2.3, v5.2.30, v5.2.31, v5.2.4, v5.2.5, v5.2.6, v5.2.7, v5.2.8, v5.2.9].

To enable extensions, verify that they are enabled in those .ini files:
- /etc/php/7.0/cli/php.ini
- /etc/php/7.0/cli/conf.d/10-mysqlnd.ini
- /etc/php/7.0/cli/conf.d/10-opcache.ini
- /etc/php/7.0/cli/conf.d/10-pdo.ini
- /etc/php/7.0/cli/conf.d/20-calendar.ini
- /etc/php/7.0/cli/conf.d/20-ctype.ini
- /etc/php/7.0/cli/conf.d/20-exif.ini
- /etc/php/7.0/cli/conf.d/20-fileinfo.ini
- /etc/php/7.0/cli/conf.d/20-ftp.ini
- /etc/php/7.0/cli/conf.d/20-gettext.ini
- /etc/php/7.0/cli/conf.d/20-iconv.ini
- /etc/php/7.0/cli/conf.d/20-json.ini
- /etc/php/7.0/cli/conf.d/20-mysqli.ini
- /etc/php/7.0/cli/conf.d/20-pdo_mysql.ini
- /etc/php/7.0/cli/conf.d/20-phar.ini
- /etc/php/7.0/cli/conf.d/20-posix.ini
- /etc/php/7.0/cli/conf.d/20-readline.ini
- /etc/php/7.0/cli/conf.d/20-shmop.ini
- /etc/php/7.0/cli/conf.d/20-sockets.ini
- /etc/php/7.0/cli/conf.d/20-sysvmsg.ini
- /etc/php/7.0/cli/conf.d/20-sysvsem.ini
- /etc/php/7.0/cli/conf.d/20-sysvshm.ini
- /etc/php/7.0/cli/conf.d/20-tokenizer.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

作曲家/json。

{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
  "php": ">=5.5.9",
  "laravel/framework": "5.2.*",
  "infyomlabs/laravel-generator": "dev-master",
  "laravelcollective/html": "5.2.*",
  "infyomlabs/core-templates": "dev-master",
  "infyomlabs/swagger-generator": "dev-master",
  "jlapp/swaggervel": "dev-master",
  "doctrine/dbal": "~2.3",
  "infyomlabs/generator-builder": "dev-master",
  "yajra/laravel-datatables-oracle": "~6.0",
  "barryvdh/laravel-ide-helper": "^2.1",
  "infyomlabs/adminlte-templates": "dev-master"
},
"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/"
    }
},
"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"
}

}

【问题讨论】：

  • 嗨@kkpatel，请举一个最小的工作示例，您为解决问题所做的工作。
  • @Andy K 需要在 php.ini 文件中为 php7.0 和 beet change 安装 mbstring 、 yum 和 xml。
  • 詹姆斯给了你答案。不是您为找到问题所做的工作

标签： laravel laravel-5.1 laravel-5.2


【解决方案1】：

您的错误消息非常明确地说明出了什么问题：

laravel/framework v5.2.9 需要 ext-mbstring * -> 您的系统中缺少请求的 PHP 扩展 mbstring。

您的服务器上是否安装了mbstring 并且已启用？

您可以将mbstring 作为 libapache2-mod-php5 软件包的一部分安装：

sudo apt-get install libapache2-mod-php5

或独立使用：

sudo apt-get install php-mbstring

安装它也将启用它，但是您也可以通过编辑您的 php.ini 文件来启用它，如果已安装它，则删除注释掉它的 ;。

如果这是在您的本地计算机上，请按照相应的步骤在您的环境中安装它。

【讨论】：

  • 如果我错了，请纠正我：并删除 ; 将其注释掉您的意思是取消注释，因为分号表示评论，对吧？
  • @SaiyanPrince 我已经编辑了我的答案 - 但我的意思是说，有分号目前正在评论它
  • @James 感谢您提供澄清，但您的编辑没有做出任何更改。从我的角度来看，我仍然不清楚..它应该是取消评论而不是评论..
  • @SaiyanPrince “评论它的;”在这种情况下是正确的英文。
  • 为什么 composer 不自动下载库 ext-mbstring？我以为它是包管理器？
【解决方案2】：

对于 php7 你可以这样做：

sudo apt-get install php-gd php-xml php7.0-mbstring

【讨论】：

  • 对于 php 7.2 我使用了 sudo apt-get install php-gd php-xml php7.2-mbstring
  • 终于！非常感谢您，好心的先生。
【解决方案3】：

在 php7.2 Ubuntu 18.04 LTS 和 ubuntu 19.04 中

sudo apt-get install php-gd php-xml php7.2-mbstring

像魅力一样工作

【讨论】：

    【解决方案4】：

    如果您将 php 7.3 用于 laravel 5.7。这对我有用

    sudo apt-get install php-gd php-xml php7.3-mbstring

    【讨论】：

    • 这是唯一对我有用的方法，我正在使用：PHP 版本 7.2.24-1 + ubuntu16.04.1 + deb.sury.org + Laravel 5.8.35
    【解决方案5】：

    此错误的快速解决方案

    运行这个命令

    composer install --ignore-platform-reqs

    此命令不考虑操作系统或平台

    【讨论】：

    • 它对我有用。 Composer 正在检查平台要求，但实际上已经满足了要求。运行此命令后，一切正常
    • 欢迎@Buraco。
    【解决方案6】：

    根据给定的答案安装软件包后，我仍然遇到一些错误，然后我安装以下软件包并且它工作正常：

    • php-xml

    具体版本：

    • php7.0-xml

    php 7.0

    的命令 
    sudo apt-get install php7.0-xml

    在某些情况下，您还需要一个包 php7.0-common 。和上面的命令一样安装。

    【讨论】：

    • 看来php版本在这里很重要...我尝试了几次使用php-xml而不是php7.*-xml。
    【解决方案7】：

    Ubuntu 已经有了很多好的答案。我在 Linux 上遇到了同样的问题，但上面的命令都不适合我。

    对于 Linux 和 php70，我使用了以下命令，效果很好：

    sudo yum install php70-mbstring -y

    【讨论】：

      【解决方案8】：

      这适用于我的 php 7.2

      sudo apt-get install php7.2-xml

      【讨论】：

        【解决方案9】：

        问题：

        Problem 1
    - laravel/framework v5.8.38 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - laravel/framework v5.8.38 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - laravel/framework v5.8.38 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - Installation request for laravel/framework (locked at v5.8.38, required as 5.8.*) -> satisfiable by laravel/framework[v5.8.38].

  To enable extensions, verify that they are enabled in your .ini files:
    - C:\xampp\php\php.ini
  You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

        解决方案：

        如果您使用 xampp，只需删除 ' ; '来自

        ;extension=mbstring

        在 php.ini 中，保存，完成！

        【讨论】：

          【解决方案10】：

          在php7.4中

          sudo apt-get install php-gd php-xml php7.4-mbstring

          【讨论】：

            猜你喜欢
            • 2014-10-08
            • 2016-01-28
            • 1970-01-01
            • 1970-01-01
            • 1970-01-01
            • 1970-01-01
            • 1970-01-01
            • 2018-09-08
            • 2016-01-10
            相关资源
            最近更新 更多
            热门标签
            Java Python linux javascript Mysql C# Docker 算法 前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库 数据结构 大数据 js 机器学习 微服务 Android Go 程序员 面试 JVM ASP.net core 云原生 人工智能 后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习 多线程 React 架构 devops 爬虫 云计算 Spring Boot LeetCode