composer.json文件的内容：

{
      "require": {
          "microsoft/windowsazure": "dev-dev"
      },"repositories": [
          {
              "type": "pear","url": "http://pear.PHP.net"
          }
      ]
  }

运行“composer update”后的输出如下：

Your requirements could not be resolved to an installable set of packages.
 
Problem 1
- Installation request for microsoft/windowsazure dev-dev -> satisfiable by microsoft/windowsazure[dev-dev].
- microsoft/windowsazure dev-dev requires pear-pear/http_request2 * -> no matching package found.

我过去从未遇到任何困难.我可以根据要求提供更详细的日志.