Php 要求编写器使用导向盒api时出错

我正在尝试在我的服务器上安装guidebox api。我根据网站上的说明运行命令：composer require guidebox/guidebox php，得到以下错误消息：

Using version ^1.0 for guidebox/guidebox-php
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

Problem 1
- guidebox/guidebox-php 1.0.0 requires phpunit/phpunit ~5.0 -> satisfiable by phpunit/phpunit[5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.2.0, 5.2.1, 5.2.10, 5.2.11, 5.2.12, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.4.0, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.7.0, 5.7.1, 5.7.10, 5.7.11, 5.7.12, 5.7.13, 5.7.14, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.9].
- guidebox/guidebox-php 1.0.1 requires phpunit/phpunit ~5.0 -> satisfiable by phpunit/phpunit[5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.2.0, 5.2.1, 5.2.10, 5.2.11, 5.2.12, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.4.0, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.7.0, 5.7.1, 5.7.10, 5.7.11, 5.7.12, 5.7.13, 5.7.14, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.9].
- guidebox/guidebox-php 1.0.2 requires phpunit/phpunit ~5.0 -> satisfiable by phpunit/phpunit[5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.2.0, 5.2.1, 5.2.10, 5.2.11, 5.2.12, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.4.0, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.7.0, 5.7.1, 5.7.10, 5.7.11, 5.7.12, 5.7.13, 5.7.14, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.9].
- guidebox/guidebox-php 1.0.3 requires phpunit/phpunit ~5.0 -> satisfiable by phpunit/phpunit[5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.2.0, 5.2.1, 5.2.10, 5.2.11, 5.2.12, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.4.0, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.7.0, 5.7.1, 5.7.10, 5.7.11, 5.7.12, 5.7.13, 5.7.14, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.9].
- guidebox/guidebox-php 1.0.4 requires phpunit/phpunit ~5.0 -> satisfiable by phpunit/phpunit[5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.2.0, 5.2.1, 5.2.10, 5.2.11, 5.2.12, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.4.0, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.7.0, 5.7.1, 5.7.10, 5.7.11, 5.7.12, 5.7.13, 5.7.14, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.9].
- guidebox/guidebox-php 1.0.5 requires phpunit/phpunit ~5.0 -> satisfiable by phpunit/phpunit[5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.2.0, 5.2.1, 5.2.10, 5.2.11, 5.2.12, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.4.0, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.7.0, 5.7.1, 5.7.10, 5.7.11, 5.7.12, 5.7.13, 5.7.14, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.9].
- guidebox/guidebox-php 1.0.6 requires phpunit/phpunit ~5.0 -> satisfiable by phpunit/phpunit[5.0.0, 5.0.1, 5.0.10, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.2.0, 5.2.1, 5.2.10, 5.2.11, 5.2.12, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.4.0, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.5.0, 5.5.1, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.7, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.7.0, 5.7.1, 5.7.10, 5.7.11, 5.7.12, 5.7.13, 5.7.14, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.9].
- phpunit/phpunit 5.7.9 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.7 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.6 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.14 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.13 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.12 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.11 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.10 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.7.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.7 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.6 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.6.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.7 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.6 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.5.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.7 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.6 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.4.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.3.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.3.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.3.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.3.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.3.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.3.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.9 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.7 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.6 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.12 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.11 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.10 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.2.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.7 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.6 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.1.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.9 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.8 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.7 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.6 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.5 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.4 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.3 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.2 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.10 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.1 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- phpunit/phpunit 5.0.0 requires ext-dom * -> the requested PHP extension dom is missing from your system.
- Installation request for guidebox/guidebox-php ^1.0 -> satisfiable by guidebox/guidebox-php[1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6].

To enable extensions, verify that they are enabled in your .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-mcrypt.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.

Installation failed, reverting ./composer.json to its original content.

---

我正在运行安装了php7的ubuntu服务器，事实上我重新安装了它。我对composer和php非常陌生，所以在回答时请记住这一点。

似乎您的系统上没有安装dom扩展。它需要它。因此，键入以下命令来安装php7.0的dom扩展

sudo apt-get install php7.0-xml

希望，这有帮助。 如果感兴趣，请查看此讨论