ASP.NET 5 Beta 8主机错误：HTTP错误502.3 - 错误的网关

Question

我使用默认模板创建了一个新的ASP.NET 5 Beta 8项目。

当我发布项目并使用IIS 8.5将其托管在服务器上时，我收到错误：

HTTP Error 502.3 - Bad Gateway
There was a connection error while trying to route the request.

The CGI application did not return a valid set of HTTP errors.
A server acting as a proxy or gateway was unable to process the request due to an error in a parent gateway.

1. 我正在使用Windows Server 2012 R2和IIS 8.5;
2. 我在无管理代码应用程序池上运行应用程序
3. 我安装了HttpPlataformHandler 1.2。

可能出现什么问题？