问题描述
有人在 Ubuntu 16.04 上安装了 laravel 5 吗？我刚刚切换到 Ubuntu 16.04，我正在尝试使用 composer 在其上安装 laravel 5 框架。但是每次我尝试创建一个项目时，它都会给我这个错误
Your requirements could not be resolved to an installable set of packages.
Problem 1
- laravel/laravel v5.2.0 requires 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].
- laravel/laravel v5.2.15 requires 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].
- laravel/laravel v5.2.23 requires 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].
- laravel/laravel v5.2.24 requires 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].
- laravel/laravel v5.2.27 requires 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].
- laravel/laravel v5.2.29 requires 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].
- laravel/laravel v5.2.31 requires 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].
- 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.
- Installation request for laravel/laravel ^5.2 -> satisfiable by laravel/laravel[v5.2.0, v5.2.15, v5.2.23, v5.2.24, v5.2.27, v5.2.29, v5.2.31].
To enable extensions, verify that they are enabled in those .ini files:
- /etc/php/5.6/cli/php.ini
- /etc/php/5.6/cli/conf.d/10-opcache.ini
- /etc/php/5.6/cli/conf.d/10-pdo.ini
- /etc/php/5.6/cli/conf.d/20-calendar.ini
- /etc/php/5.6/cli/conf.d/20-ctype.ini
- /etc/php/5.6/cli/conf.d/20-exif.ini
- /etc/php/5.6/cli/conf.d/20-fileinfo.ini
- /etc/php/5.6/cli/conf.d/20-ftp.ini
- /etc/php/5.6/cli/conf.d/20-gettext.ini
- /etc/php/5.6/cli/conf.d/20-iconv.ini
- /etc/php/5.6/cli/conf.d/20-json.ini
- /etc/php/5.6/cli/conf.d/20-phar.ini
- /etc/php/5.6/cli/conf.d/20-posix.ini
- /etc/php/5.6/cli/conf.d/20-readline.ini
- /etc/php/5.6/cli/conf.d/20-shmop.ini
- /etc/php/5.6/cli/conf.d/20-sockets.ini
- /etc/php/5.6/cli/conf.d/20-sysvmsg.ini
- /etc/php/5.6/cli/conf.d/20-sysvsem.ini
- /etc/php/5.6/cli/conf.d/20-sysvshm.ini
- /etc/php/5.6/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, deleting ./composer.json.
我读过文章 Here one of them 说 Ubuntu 16.04 默认带有 PHP7，但我们仍然可以使用 PHP5。但是我尝试了 PHP7 和PHP5，仍然得到同样的错误！有任何想法吗？谢谢
最佳方案
如何在 Ubuntu 16.04 中安装 Laravel
更新：Laravel 5.4
由于对这个问题非常感兴趣，我决定更新它并创建一个小型 bash 脚本来安装使用 Laravel 所需的一切(这个与 NGINX 一起使用)
https://github.com/emilas44/laravel-5.4-on-Ubuntu/blob/master/script.sh
您可以简单地复制它并随意编辑它…也许您已经安装了脚本中的一些组件，如果是这样，您可以自由删除不需要的部分。
Laravel 5.2 如下：
基本的东西安装(可选)
sudo apt-get install git
sudo apt-get install zip
LAMP
sudo apt-get install tasksel
sudo tasksel install lamp-server
CURL
sudo apt-get install curl php-curl php-mcrypt php-mbstring php-gettext
启用模组
sudo phpenmod mcrypt
sudo phpenmod mbstring
sudo a2enmod rewrite
sudo systemctl restart apache2
Composer
curl -sS https://getcomposer.org/installer | php
sudo mv composer.phar /usr/local/bin/composer
安装 phpmyadmin
sudo apt-get install phpmyadmin
稍后可通过 localhost/phpmyadmin 访问
创建 Laravel 项目
cd /var/www/html/
sudo composer create-project laravel/laravel work --prefer-dist
sudo chmod -R 777 work (do not set 777 on "live" server!)
创建虚拟主机 work.com
sudo gedit /etc/apache2/sites-available/work.com.conf
并将其粘贴到该文档中
#/etc/apache2/sites-available/work.com.conf contains following lines
<VirtualHost *:80>
ServerName work.com
DocumentRoot /var/www/html/work/public
<Directory /var/www/html/work/public>
AllowOverride All
Require all granted
</Directory>
</VirtualHost>
启用该站点
sudo a2ensite work.com
service apache2 reload
修复主机文件，以便您可以通过网络浏览器访问它
sudo gedit /etc/hosts //space between gedit and destination!
#/etc/hosts contents following lines
127.0.0.1 work.com
或使用此命令
sudo -- sh -c "echo '\n127.0.0.1 \twork.com'>> /etc/hosts"
就这样安装了laravel！
我已经在 youtube 上制作了一个教程，如何使它正确……包含使用 laravel 所需的所有东西。这是链接：https://www.youtube.com/watch?v=A6TdaRIsG6g
次佳方案
我已将 php 5.6.11 升级到 5.6.21。
所以，就我而言，我必须运行：
sudo apt-get install php5.6-mbstring
PS：我如何从 5.6.11 升级到 5.6.21 以下：
sudo LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php5.6
升级原因：作曲家更新期间的 zend_mm_heap corrupted。
第三种方案
这些是我在全新升级后在 Ubuntu Server 16.04 上安装 Laravel 5 所必须采取的步骤
首先，我必须完全删除所有 PHP，正如 Mohammad Barhoush 所说：
-
sudo apt-get -y purge php.*
然后我重新安装了PHP：
-
sudo apt install php libapache2-mod-php -
sudo apt install php-cli -
sudo apt install php-mysql
重新安装 PHP 7.0 版后，我安装了 Mohhammad 推荐的其他相关软件包：
-
sudo apt-get install curl php-curl php-mcrypt php-mbstring php-gettext php-gd
并启用了模组
-
sudo phpenmod mcrypt -
sudo phpenmod mbstring最后，毕竟这个作曲家仍然在抱怨它没有composer update的 zip 扩展名，所以我安装了以下内容： -
sudo apt-get install php7.0-zip
之后它运行得很好，没有错误！
这些是我从以前的 LTS 版本的 Ubuntu Server 获得 laravel 5 运行所需的步骤。希望这有帮助！此致 ：)
-德里克