net452 
namespace System.Net.Http
{
    [EditorBrowsable(EditorBrowsableState.Never)]
    public static class HttpRequestMessageExtensions
    {
        public static HttpResponseMessage CreateErrorResponse(this HttpRequestMessage request, HttpStatusCode statusCode, string message);
    }
}
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.NET
5.06.07.08.09.010.0
.NET Core
2.02.12.23.03.1
.NET Framework
4.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
.NET Standard
2.02.1
Information specific to net452
Assembly

System.Web.Http , Version=5.3.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Your project needs a package reference to Microsoft.AspNet.WebApi.Core.

Package Microsoft.AspNet.WebApi.Core (5.3.0) net45
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API