window.onbeforeunload = function (e) {
    $.connection.hub.stop();
};

public IList<AdvertismentViewModel> GetAdvertisementsByMe(int userId)
        {
            Mapper.CreateMap<Advertisement, AdvertismentViewModel>();
            var adsList = _advertisements.Where(x => x.UserId == userId).Project().To<AdvertismentViewModel>().ToList();
            return adsList;
        }

public IList<AdvertismentViewModel> GetAdvertisementsByMe(int userId)
{
            var adsList = _advertisements.Where(x => x.UserId == userId).ToList();
            var adsViewModel = new List<AdvertismentViewModel>();
            _mappingEngine.Map(source: adsList, destination: adsViewModel);
            return adsViewModel;
}

public class AdvertismentViewModel
    {
        public string Image { get; set; }
        public string Title { get; set; }
        public string ExpireDate { get; set; }
    }

Missing type map configuration or unsupported mapping.

Mapping types:
Advertisement -> AdvertismentViewModel
Project.DomainClasses.Advertisement -> Project.Models.AdvertismentViewModel

Destination path:
List`1[0]

Source value:
System.Data.Entity.DynamicProxies.Advertisement_E82DFF273E08C95AA785F8F7A0D2B5ABC8E54C4566DFE1C8A92D8D3C447608AE

[ChildActionOnly]
        public async Task<ActionResult> GetLastActivity()
        {
            var query = await _userManager.FindByIdAsync(User.Identity.GetUserId<int>());
            var result = query.LastActivity;
            return PartialView("GetLastActivity", result);
        }

@model DateTime
@Model

{"HttpServerUtility.Execute blocked while waiting for an asynchronous operation to complete."}