This operation requires IIS integrated pipeline mode

Question

I have a web application being developed on Windows 8 1   NET 4 5 1  IIS 8 5  under Integrated AppPool   Visual Studio 2013 over the default template that includes ASP NET Identity  Owin  etc  and locally it works fine  Then I uploaded it to a Windows Server 2008 using IIS 7 5  Integrated Pipeline  Host and I get   This operation requires IIS integrated pipeline mode  Exception Details  System PlatformNotSupportedException  This operation requires IIS integrated pipeline mode  Stack Trace   PlatformNotSupportedException  This operation requires IIS integrated pipeline mode     System Web HttpResponse get Headers    9687046   System Web HttpResponseWrapper get Headers    9   Microsoft Owin Host SystemWeb OwinCallContext CreateEnvironment    309   Microsoft Owin Host SystemWeb IntegratedPipeline IntegratedPipelineContext GetInitialEnvironment HttpApplication application   246   Microsoft Owin Host SystemWeb IntegratedPipeline IntegratedPipelineContext PrepareInitialContext HttpApplication application   15   Microsoft Owin Host SystemWeb IntegratedPipeline IntegratedPipelineContextStage BeginEvent Object sender  EventArgs e  AsyncCallback cb  Object extradata   265   System Web AsyncEventExecutionStep System Web HttpApplication IExecutionStep Execute    285   System Web HttpApplication ExecuteStep IExecutionStep step  Boolean amp  completedSynchronously   155   I am unable to find anything except for directing the reader to change the pipeline from classic mode to integrated mode  which I already did with no success  What can I do to fix the problem  Does  quot Microsoft Owin Host SystemWeb quot  not like IIS 7 5 or something

User · Answer

This error means the application pool to which your deployed application belongs is not in Integrated mode    Create a new application pool with  NET 4 version selected  and Managed Pipeline mode as Integrated  Change your application s app pool to the above created one and try now

User · Answer

This was a strange problem since my hosts IIS shouldn t complain that it requires integrated pipeline mode when it already is in that mode as I stated in my question as      I have searched a lot and unable to find anything except for directing the reader to change the pipeline from classic mode to integrated mode that which I already did with no luck     Using Levi s directions  I put  lt    System Web Hosting HttpRuntime UsingIntegratedPipeline   gt  and  lt    System Web Hosting HttpRuntime IISVersion   gt   on an empty aspx page and told my host what going on and asked them to fix the problem and confirm the problem using the page I uploaded    I checked very often if something has changed at the state of the page and I can see that they struggled 3-4 hours to solve it      When I asked what they have done to solve the problem  their answer was kind of  classified   since they said       Our team made the required changes on the server   The problem was all with my host         Update   As Ben stated in the comments          lt    System Web Hosting HttpRuntime UsingIntegratedPipeline   gt  and     lt    System Web Hosting HttpRuntime IISVersion   gt          are no longer valid and they are now           lt    System Web HttpRuntime UsingIntegratedPipeline   gt  and     lt    System Web HttpRuntime IISVersion   gt

User · Answer

Those who are using VS2012     Goto project   Properties   Web       Check Use Local IIS Web server      Check Use IIS Express   Project Url http   localhost PORT

User · Answer

I resolved this problem by following steps    Right click on root folder of project  Goto properties Click web in left menu change current port http   localhost       click create virtual directory Save the changes  ctrl s  Run   may be it help you to

User · Answer

Your Application Pool is in classic mode but your Application need integrated mode to fire   change it to Integrated Mode    Open IIS Manager Application Pool Select pool that your app are run in it In right panel select Basic Setting Manage Pipeline Mode change to Integrated

User · Answer

Press F4 in your Project for the property window  Then change the pipeline mode

User · Answer

GitHub solution solved the problem for me by adding   Global asax cs  Set AntiForgeryConfig SuppressXFrameOptionsHeader   true  in Application Start  Manually add the X-Frame-Options header in Application BeginRequest

User · Answer

For Visual Studio 2012 while debugging that error accrued  Website Menu -  Use IIS Express did it for me

User · Answer

Try using Response AddHeader instead of Response Headers Add

User · Answer

I was having the same issue and I solved it doing the following    In Visual Studio  select  Project properties    Select the  Web  Tab  Select  Use Local IIS Web server    Check  Use IIS Express

User · Answer

The way to fix this issue is not within IIS   I was trying to run my application within IIS Express within Visual Studio   I searched the web and some articles were saying to add an identity tag   to the system web tag   This is not the correct way    The way I was able to solve this issue was to click on the project file and go to properties  Under managed pipeline  I changed the property value from classic to integrated   This solved my issue

[asp.net] "This operation requires IIS integrated pipeline mode."

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