Hello,

I have a project running that use custom controllers and custom view models and now and then after a server restart or umbraco update these custom models will throw a ModelBindingException as you can see below. I can't seem to find the problem that causes it. A server restart fixes the problem until it happens again.

Umbraco.Web.Mvc.ModelBindingException: Cannot bind source content type projectname.Web.AppCode.Models.JobOverviewModel to model type projectname.Web.AppCode.Models.JobOverviewModel

Below you see one of the models that throws the exception where JobOverview is a umbraco modelsbuilder generated model

namespace projectname.Web.AppCode.Models
{
    public class JobOverviewModel : JobOverview
    {
        public JobOverviewModel(IPublishedContent content) : base(content) { }

        public IEnumerable<OfferModel> Offers { get; set; } = new HashSet<OfferModel>();
    }
}

This model is used by a view that has the following inherrit

@inherits Umbraco.Web.Mvc.UmbracoViewPage<JobOverviewModel>

The masterylayout the above view uses has the following inherrit

@inherits Umbraco.Web.Mvc.UmbracoViewPage

and finally below is the custom controller for the page that uses the custom model

public class JobOverviewController : RenderMvcController
{
    private readonly RecruiteeClient _recruiteeClient;

    public JobOverviewController(
        RecruiteeClient recruiteeClient
        )
    {
        _recruiteeClient = recruiteeClient;
    }

    public ActionResult JobOverview(ContentModel model)
    {
        var newModel = new JobOverviewModel(model.Content);

        var offers = _recruiteeClient.AllOffers();

        newModel.Offers = offers;

        return CurrentTemplate(newModel);
    }
}

As far as I know I have followed the documentation correctly but maybe I have missed something.

I hope anyone here can help me with this :).