'namespace' but is used like a 'type'

My program uses a class called Time2. I have the reference added to TimeTest but I keep getting the error, 'Time2' is a 'namespace' but is used like a 'type'.

Could someone please tell me what this error is and how to fix it?

namespace TimeTest
{
  class TimeTest
  {
    static void Main(string[] args)
    {
        Time2 t1 = new Time2();
    }
  }
}

I suspect you've got the same problem at least twice.

Here:

namespace TimeTest
{
    class TimeTest
    {
}

... you're declaring a type with the same name as the namespace it's in. Don't do that.

Now you apparently have the same problem with Time2. I suspect if you add:

using Time2;

to your list of using directives, your code will compile. But please, please, please fix the bigger problem: the problematic choice of names. (Follow the link above to find out more details of why it's a bad idea.)

(Additionally, unless you're really interested in writing time-based types, I'd advise you not to do so... and I say that as someone who does do exactly that. Use the built-in capabilities, or a third party library such as, um, mine. Working with dates and times correctly is surprisingly hairy. :)

namespace TestApplication // Remove .Controller
{
    public class HomeController : Controller
    {
       public ActionResult Index()
        {
            return View();
        }
    }
}

Remove the controller word from namepsace

All the answers indicate the cause, but sometimes the bigger problem is identifying all the places that define an improper namespace. With tools like Resharper that automatically adjust the namespace using the folder structure, it is rather easy to encounter this issue.

You can get all the lines that create the issue by searching in project / solution using the following regex:

namespace .+\.TheNameUsedAsBothNamespaceAndType

If you're working on a big app and can't change any names, you can type a . to select the type you want from the namespace:

namespace Company.Core.Context{
  public partial class Context : Database Context {
    ...
  }
}
...

using Company.Core.Context;
someFunction(){
 var c = new Context.Context();
}

I had this problem as I created a class "Response.cs" inside a folder named "Response". So VS was catching the new Response () as Folder/namespace.

So I changed the class name to StatusResponse.cs and called new StatusResponse().This solved the issue.