通过作曲家安装guzzle

recently I've started one project and want to use elasticsearch. But when I want to install guzzle for PHP via composer, I get folowing error. I have no idea what is this error.

enter image description here

My composer required packages are:

"require":{
    "yiisoft/yii":"1.1.14",
    "2amigos/yiiwheels":"1.0.3",
    "clevertech/yii-booster": "4.0.1",
    "drmabuse/yii-bootstrap-3-module": "dev-master",
    "guzzle/guzzle": "3.9.0",
    "elasticsearch/elasticsearch": "1.2.2"
  },

my PHP Version 5.4.7

my composer.json file

I had no problem installing all the packages from your requirements in one go.

If the problem persists, try to delete the vendor folder and the composer.lock file and run composer update again.