我正在尝试使用来自git的Laravel框架作为我们公司的简单内联网解决方案，我对使用Laravel很新，但在创建新项目时我能够让它工作。当我克隆Git仓库https://github.com/sroutier/laravel-enterprise-starter-kit，使用homestead和VirtualBox设置它，然后从特定代码文件vagrant ssh旁边的composer update进行调用时，会出现问题。然后我得到了这个错误：
vagrant@homestead:~/Code/laravel-5.1-enterprise-starter-kit$ composer update
Loading composer repositories with paUpdating dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages.
> Problem 1
- adldap2/adldap2 v5.2.x-dev requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.9 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.8 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.7 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.6 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.5 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.4 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.3 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.2 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.17 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.16 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.15 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.14 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.13 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.12 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.11 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.10 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.1 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.2.0 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.x-dev requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.9 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.8 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.7 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.6 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.5 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.4 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.3 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.21 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.20 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.2 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.19 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.18 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.17 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.16 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.15 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.14 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.13 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.12 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.11 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.10 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.1 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.1.0 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.x-dev requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.8 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.7 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.6 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.5 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.4 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.3 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.2 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.1 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.0-beta.4 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.0-beta.3 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.0-beta.2 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.0-beta.1 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.0-alpha.1 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- adldap2/adldap2 v5.0.0 requires ext-ldap * -> the requested PHP extension ldap is missing from your system.
- sroutier/eloquent-ldap 1.0.x-dev requires adldap2/adldap2 5.* -> satisfiable by adldap2/adldap2[v5.0.0, v5.0.0-alpha.1, v5.0.0-beta.1, v5.0.0-beta.2, v5.0.0-beta.3, v5.0.0-beta.4, v5.0.1, v5.0.2, v5.0.3, v5.0.4, v5.0.5, v5.0.6, v5.0.7, v5.0.8, v5.0.x-dev, v5.1.0, v5.1.1, v5.1.10, v5.1.11, v5.1.12, v5.1.13, v5.1.14, v5.1.15, v5.1.16, v5.1.17, v5.1.18, v5.1.19, v5.1.2, v5.1.20, v5.1.21, v5.1.3, v5.1.4, v5.1.5, v5.1.6, v5.1.7, v5.1.8, v5.1.9, v5.1.x-dev, 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, v5.2.2, v5.2.3, v5.2.4, v5.2.5, v5.2.6, v5.2.7, v5.2.8, v5.2.9, v5.2.x-dev].
- Installation request for sroutier/eloquent-ldap ^1.0@dev -> satisfiable by sroutier/eloquent-ldap[1.0.x-dev].
> 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/15-xml.ini
- /etc/php/7.0/cli/conf.d/20-apcu.ini
- /etc/php/7.0/cli/conf.d/20-apcu_bc.ini
- /etc/php/7.0/cli/conf.d/20-bcmath.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-curl.ini
- /etc/php/7.0/cli/conf.d/20-dom.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-gd.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-igbinary.ini
- /etc/php/7.0/cli/conf.d/20-imap.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-mcrypt.ini
- /etc/php/7.0/cli/conf.d/20-msgpack.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-pdo_pgsql.ini
- /etc/php/7.0/cli/conf.d/20-pdo_sqlite.ini
- /etc/php/7.0/cli/conf.d/20-pgsql.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-simplexml.ini
- /etc/php/7.0/cli/conf.d/20-soap.ini
- /etc/php/7.0/cli/conf.d/20-sockets.ini
- /etc/php/7.0/cli/conf.d/20-sqlite3.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
- /etc/php/7.0/cli/conf.d/20-wddx.ini
- /etc/php/7.0/cli/conf.d/20-xmlreader.ini
- /etc/php/7.0/cli/conf.d/20-xmlwriter.ini
- /etc/php/7.0/cli/conf.d/20-xsl.ini
- /etc/php/7.0/cli/conf.d/20-zip.ini
- /etc/php/7.0/cli/conf.d/25-memcached.ini
- /etc/php/7.0/cli/conf.d/90-blackfire.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.
我已经尝试了大多数不同的方法来解决它我可以找到包括作曲家安装和更新的解决方法，不会改变我的问题。我确信它的一些简单我只是缺少但到目前为止我还没有看到它可能是什么。