HubException: Method does not exist. in signalr

Question

I add the method but when use it there will be an error:

HubException: Method does not exist.

why?

public interface IResponse

{
 Task AddDeviceResponse(int id);
}

public class DeviceHub:Hub<IResponse>
{
    public async Task AddDevice(int id)
{
    await Clients.Caller.AddDeviceResponse(0);
}

}

when I call the AddDevice there will be the error why?