autofac with webapi controller registry issue

Question

Hi All,

 

When i use WebApi with Autofac, every time i'm getting runtime issue that "An error occurred when trying to create a controller of type 'EmployeeController'. Make sure that the controller has a parameterless public constructor"

 

I'm using below autofac code in WebAPI global.asax

 

var builder = new ContainerBuilder();

var config = GlobalConfiguration.Configuration;

builder.RegisterApiControllers(Assembly.GetExecutingAssembly()); 

var container = builder.Build(); config.DependencyResolver = new AutofacWebApiDependencyResolver(container);

 

Can any one asisst for this?