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Suddenly while i try to run my web application I got this:

PlatformNotSupportedException Error

I mentioned the Exception details below:

[PlatformNotSupportedException: This operation requires IIS integrated pipeline mode.] System.Web.HttpResponse.get_Headers() +9710022
System.Web.HttpResponseWrapper.get_Headers() +9
Microsoft.Owin.Host.SystemWeb.CallHeaders.AspNetResponseHeaders..ctor(HttpResponseBase response) +72
Microsoft.Owin.Host.SystemWeb.OwinCallContext.CreateEnvironment() +434 Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.GetInitialEnvironment(HttpApplication application) +303
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.PrepareInitialContext(HttpApplication application) +65
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.BeginEvent(Object sender, EventArgs e, AsyncCallback cb, Object extradata) +622
System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +285 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

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Sestertius
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Lasitha Ranasinghe
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  • possible duplicate of [I got error PlatformNotSupportedException when I work with date's](http://stackoverflow.com/questions/7606810/i-got-error-platformnotsupportedexception-when-i-work-with-dates) – user990423 Jun 18 '15 at 17:47
  • possible duplicate of ["This operation requires IIS integrated pipeline mode."](http://stackoverflow.com/questions/22313167/this-operation-requires-iis-integrated-pipeline-mode) – CodeCaster Jun 18 '15 at 17:50

1 Answers1

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I found the answer for the issue my self..

Go into Project properties. Select Web Tab. Select "Use Local IIS Web server" Check "Use IIS Express"

This will solve the issue.

Lasitha Ranasinghe
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