当我键入"composer create project laravel/laravel simple blog"从服务器加载简单博客时，我收到一个错误：
Loading composer repositories with package information
Installing dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- 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 v5.2.3 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 v5.2.1 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/framework 5.2.* -> satisfiable by laravel/framework[v5.2.0, v5.2.1, v5.2.2, v5.2.3, v5.2.4, v5.2.5, v5.2.6].
有人能告诉我出了什么问题吗？
错误告诉您需要知道的一切。
您只是缺少一个必需的PHP扩展Mbstring。
您需要安装该软件包，或者通过php.ini文件启用它。
php.ini
找到这一行;extension=php_mbstring.dll，并通过删除;来取消注释，使其读取extension=php_mbstring.dll
或者，如果您的系统允许，只需运行php5enmod mbstring即可
安装它
在基于linux/debian的系统中，它只是apt-get install libapache2-mod-php5。该包包括扩展以及Laravel所需的其他一切。考虑到您在安装时没有其他错误，您可能已经有了这个错误，只需要在php.ini文件