CODEWITHSUNDEEP
asp.netasp.net-web-api
user1345260
user1345260

Reputation: 2249

No type was found that matches the controller named

UPDATE: I unloaded the project and re-did it again and it worked.

I'm trying to create a WebApi, my build works fine and I get the error message "No type was found that matches the controller named" when I try to go to URI

This is how my webapiconfig looks like,

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );
    }
}

And below is my controller,

public class ClientController : ApiController
{

    public List<Client> Get()
    {
        ICRepository repository = new CRepository(new CContext());

        return repository.GetAllClients().ToList();
    }

And this is how my global.asax.cs file looks like,

public class MvcApplication : System.Web.HttpApplication
{
    protected void Application_Start()
    {
        AreaRegistration.RegisterAllAreas();

        WebApiConfig.Register(GlobalConfiguration.Configuration);
        GlobalConfiguration.Configure(WebApiConfig.Register);
        FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
        RouteConfig.RegisterRoutes(RouteTable.Routes);
    }
}

I'm trying to browse to the url "http://localhost:50662/api/client"

The complete error is as below,

This XML file does not appear to have any style information associated with it. The document tree is shown below. No HTTP resource was found that matches the request URI 'http://localhost:50662/api/Client'.No type was found that matches the controller named 'Client'.

My question is different from what it's been marked as duplicate of, the question uses just controller which is MVC and mine is "ApiController" and I did read that before creating this. Also, the marked answer there is similar to what I have in here and my problem still exists.

Any help would be highly appreciated. I'm really lost.

Upvotes: 4

Views: 16579

Answers (4)

user11858248
user11858248

Reputation: 1

Right now I am facing a very similar issue. My error message was No type was found that matches the controller named 'odata'. It seems really strange to me, that it seems to be searching for a controller named ODataController or something like that. So I started looking for the real issue. In my case, it was the fact, that I had forgotten to include a public parameterless contructor to the controller class. I added it and the error went away immediately.

Upvotes: 0

Marco
Marco

Reputation: 23937

Although it isn't the cause of your problem, mine was actually caused by adding a new item of type class through Visual Studios context-menu and not a Controller.

The generated file had the following structure:

class foo
{
}

I extended the class to inherit from ApiController, but forgot to mark it as public

This is the correct version:

public class FooController : ApiController
{
    public string Get(string name="Bar")
    {
        return $"Hello {name}"};
    }
}

Upvotes: 1

M_Idrees
M_Idrees

Reputation: 2172

I was getting the same error:

Error><Message>No HTTP resource was found that matches the request URI 'http://localhost:53569/api/values'.</Message><MessageDetail>No type was found that matches the controller named 'values'.</MessageDetail></Error>

By default when I created new controller in asp.net web forms application, it was like this:

ValuesController1 : ApiController

I just simply removed "1", and make it:

ValuesController : ApiController

I don't know if it is a bug or whatever, but it works for me.

Upvotes: 3

pjobs
pjobs

Reputation: 1247

you are calling WebApiConfig twice.

 WebApiConfig.Register(GlobalConfiguration.Configuration);
 GlobalConfiguration.Configure(WebApiConfig.Register);

Remove one of them. if you are using Web Api Version >= 2.0, then remove the first one, otherwise remove the second one.

Edit 1

I think your issue may be similar to this Answer

You might be missing some reference libraries, may not be directly related to Your Controller or API, but the way Web Api finds the Controller, is it go through all assemblies referenced by the application and search for types matching a predicate.

Upvotes: 0

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