The Question : 144 people think this question is useful I created a web project and it runs well in Visual studio. However, I got the following error after published it to azurewebsites. What can cause the issue? Could not load file or assembly ‘System.Web.Http.WebHost, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ or one of its dependencies. The located