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无法更新作曲家（ubuntu 16.04）

tag-icon • tag-icon 16.04
无法更新作曲家（ubuntu 16.04）

我想更新作曲家，但是它给了我这样的错误。

使用包信息加载作曲家存储库更新依赖项（包括 require-dev）您的要求无法解析为可安装的软件包集。

  Problem 1
    - Installation request for phpoffice/phpexcel 1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.0].
    - phpoffice/phpexcel 1.8.0 requires ext-xml * -> the requested PHP extension xml is missing from your system.

  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-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-intl.ini
    - /etc/php/7.0/cli/conf.d/20-json.ini
    - /etc/php/7.0/cli/conf.d/20-mbstring.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.

这是我的composer.json

"require-dev": {
        "yiisoft/yii2-codeception": "*",
        "yiisoft/yii2-debug": "*",
        "yiisoft/yii2-gii": "*",
        "yiisoft/yii2-faker": "*",
        "kartik-v/yii2-widget-select2": "@dev",
        "phpoffice/phpexcel": "1.8.0" 
    },

答案1

一些运行良好的 Yii2 的扩展尚未安装，您可以通过重新安装软件包来纠正它：

sudo apt-get install php7.0-xmlrpc php7.0-xml

答案2

安装 php 扩展sudo apt-get install php-xmlrpc php-xml

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