Unity IoC does not inject dependency into Web API Controller

Question

I\'m very new to using Unity, but my problem is that whenever I call my web service, I get an exception stating that

\"Make sure that the controller has a parameterl

Answer 1

• Install Unity.mvc5 and Unity.WebApi in a project through nuget package
• Specify fullnamespace as per below line

Example:

public static class UnityConfig
{
    public static void RegisterComponents()
    {
        var container = new UnityContainer();

        // register all your components with the container here
        // it is NOT necessary to register your controllers

        // e.g. container.RegisterType();

        DependencyResolver.SetResolver(new Unity.Mvc5.UnityDependencyResolver(container));

        GlobalConfiguration.Configuration.DependencyResolver = new Unity.WebApi.UnityDependencyResolver(container);
    }
}