HTTP Error 500.22 - Internal Server Error (An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode.)

Question

I receive this error when I view an application.

HTTP Error 500.22 - Internal Server Error (An ASP.NET setting has been detected that does not apply i

Answer 1

I have a similar problem with IIS 7, Win 7 Enterprise Pack. I have changed the application Pool as in @Kirk answer :

Change the Application Pool mode to one that has Classic pipeline enabled".but no luck for me.

Adding one more step worked for me. I have changed the my website's .NET Frameworkis v2.0 to .NET Frameworkis v4.0. in ApplicationPool

Answer 2

In your web.config, make sure these keys exist:

<configuration>
    <system.webServer>
        <validation validateIntegratedModeConfiguration="false"/>
    </system.webServer>
</configuration>