selenium2的作曲家安装面临尔康/孵化器错误在PHP

Question

我使用窗口的命令提示符，当我更新作曲家

C:\xampp\htdocs\myproject>composer update 
Warning: This development build of composer is over 60 days old. It is recommend 
ed to update it by running "C:\ProgramData\ComposerSetup\bin\composer.phar self- 
update" to get the latest version. 
Loading composer repositories with package information 
Updating dependencies (including require-dev) 
Failed to decode response: zlib_decode(): data error 
Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubles 
hooting.md#degraded-mode for more info 
Your requirements could not be resolved to an installable set of packages. 

Problem 1 
    - Installation request for phalcon/incubator dev-master -> satisfiable by ph 
alcon/incubator[dev-master]. 
    - phalcon/incubator dev-master requires ext-phalcon >=2.0.4 -> the requested 
PHP extension phalcon is missing from your system. 

Answer 1

最后一行应该给你一个线索下面的错误面向：你有没有但在您的系统上安装了PhalconPHP，这是孵化器软件包所要求的。按照建议运行composer self-update。