部署ASP.NET站点遇到报错Request is not available in this context

部署ASP.NET站点遇到如下报错

Server Error in '/' Application.

Request is not available in this context

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Request is not available in this context

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

解决办法

把IIS应用程序池改成经典模式，报错即可解决