HTTP Error 500.23-an ASP. NET setting is detected that is not applicable in integrated managed pipeline mode

HTTP Error 500.23-An introduction to the ASP. NET settings that are not applicable in integrated managed pipeline mode are detected:

Today, when developing a new module, a new module configuration is required, and because the project is multi-domain, an error occurred during access:

Enter the domain name can not open, visible is the server problem

Solution:

Find the application pool for the domain name, change the managed pipeline mode from integrated to classic , OK,