您的系统缺少所需的PHP扩展名dom [英] The requested PHP extension dom is missing from your system

问题描述

所以我刚安装了Scotchbox（一个无聊的安装程序）。
https://github.com/scotch-io/scotch-box

So I just installed Scotchbox (a vagrant setup). https://github.com/scotch-io/scotch-box

当我遇到以下错误时，我正在尝试安装Composer依赖项。

I'm trying to install a composer dependancy when I get the following error.

Problem 1
- phpunit/php-code-coverage 4.0.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/php-code-coverage 4.0.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/php-code-coverage 4.0.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- Installation request for phpunit/php-code-coverage (locked at 4.0.8) -> satisfiable by phpunit/php-code-coverage[4.0.8].

我尝试过的事情

有些其他线程建议将其包含在php-xml包中。我尝试安装这样做

What I've tried

Some other thread suggested that this is included in the php-xml package. I tried installing this doing

sudo apt-get install php7.0-xml
sudo service apache2 restart

但这没用。
知道其他什么解决方案可能有效吗？我开始拔头发。

But that didn't work. Any idea what other solutions might work? I'm starting to pull my hair out.

推荐答案

对我来说，所选答案无效。

For me the selected answer didn't work.

这确实可行：

sudo apt-get install php-xml

这是在装有PHP 7的Ubuntu 16.04上。

This was on Ubuntu 16.04 with PHP 7.

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