getting exception "Object reference not set to an instance of an object." while getting current page from an interface as working in dancing goat sample project i have created an interface and declare a property as "LandingPage GetLandingPage(string pageAlias);" and create a parametric constructor and create object of interface in constructor parameter. while getting landingPage it says null reference exception, my pageAlias is not null,
public ActionResult Index(string pageAlias)
{
var landingPage = mRepository.GetLandingPage(pageAlias);
if (landingPage == null)
{
return HttpNotFound();
}
HttpContext.Kentico().PageBuilder().Initialize(landingPage.DocumentID);
return View();
}