出错：
Pyrus\Installer\Exception: Installation failed Pyrus\AtomicFileTransaction\MultiException: Unable to begin transaction InvalidArgumentException: The given path must be a directory. Pyrus\AtomicFileTransaction\RuntimeException: Cannot rollback - not in a transaction
原因：首次运行时，目录设置错误，应该为php/lib
解决方案：
vi ~/.pear/pearconfig.xml转载于:https://www.cnblogs.com/sink_cup/p/php-pear2.html
相关资源：Windows 下的 PHP-PEAR 安装方法