我正在尝试使用内置Server中的Visual Studio 2012来运行我的网站。我收到此错误。我收到此错误（注意我没有使用虚拟目录或IIS服务器只是Visual Studio 2012）：
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
Source Error:
Line 30: </buildProviders>
Line 31: </compilation>
Line 32: <authentication mode="None">
Line 33: <forms loginUrl="~/Account/Login.aspx" timeout="2880" />
Line 34:
Source File: D:\work\latest\NewPortal16-11\NewPortal8\newportal8\web.config Line: 32
Show Additional Configuration Errors:
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34249