This operation requires IIS integrated pipeline mode.

Question

User1655956792 posted

When I deploy my ASP.NET MVC application to the host I bought ( it supports ASP.NET 4.7 and MSSQL ) and try to access it with the domain name I get this error:

This operation requires IIS integrated pipeline mode.

Stack trace:

[PlatformNotSupportedException: This operation requires IIS integrated pipeline mode.]
   System.Web.HttpResponse.get_Headers() [phone]
   Microsoft.Owin.Host.SystemWeb.OwinCallContext.CreateEnvironment() +548
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.GetInitialEnvironment(HttpApplication application) +347
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.PrepareInitialContext(HttpApplication application) +19
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.BeginEvent(Object sender, EventArgs e, AsyncCallback cb, Object extradata) +392
   System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +625
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128

Edit: So, I send an email to my hosting provider and they told me where was the option in my panel to switch from 'classic' to 'integrated'.

Answer 1

User753101303 posted

Hi,

In IIS you have the "classic" and the "integrated" pipeline mode which should be the default. It is configured at the application pool level. See perhaps :

https://docs.microsoft.com/en-us/iis/configuration/system.applicationhost/applicationpools/#overview
https://blogs.msdn.microsoft.com/tmarq/2007/08/30/iis-7-0-asp-net-pipelines-modules-handlers-and-preconditions/

Not sure which level of control you have. You can access the application pool configuration ? If not, ask your hosting service support.

Answer 2

User-1174608757 posted

Hi backnot, 

According to your description, it shows this error because  Application Pool is in classic mode but your Application need integrated mode to fire.So I suggest that you could change your application pool to integrated mode.You could follow the steps as below:

1. Open IIS Manager

2. Application Pool

3. Select pool that your app are run in it

4. In right panel select Basic Setting

5. Manage Pipeline Mode change to Integrated

You could see as below:

Best Regards

Wei