Hey all,

I'm developing a website in Umbraco 4.11.1 and I have come across several errors:

Problem 1: When using:

@foreach (var page in Model.Content.AncestorsOrSelf(1))

I get the following error:

Compiler Error Message: CS1928: 'Umbraco.Web.Models.RenderModel' does not contain a definition for 'AncestorsOrSelf' and the best extension method overload 'Umbraco.Web.PublishedContentExtensions.AncestorsOrSelf(Umbraco.Core.Models.IPublishedContent, string)' has some invalid arguments

Problem 2: When using:

@item.GetPropertyValue<DateTime>("datum").ToString("dd MMMM yyyy")

I get the following error:

Compiler Error Message: CS1502: The best overloaded method match for 'System.Web.WebPages.WebPageExecutingBase.Write(System.Web.WebPages.HelperResult)' has some invalid arguments

To fix it I need to format the Razor code as:

@(item.GetPropertyValue<DateTime>("datum").ToString("dd MMMM yyyy"))

Problem 3: When using:

var image = new DAMP.PropertyEditorValueConverter.Model(item.GetPropertyValue("afbeelding"))

I get the following error:

Compiler Error Message: CS1502: The best overloaded method match for 'DAMP.PropertyEditorValueConverter.Model.Model(string)' has some invalid arguments

To fix it I need to format the Razor code as:

var image = new DAMP.PropertyEditorValueConverter.Model(item.GetPropertyValue<int>("afbeelding").ToString())

Also, when the "afbeelding" property has no value, Count() still returns 1. But the DAMP_Item object in the list is empty.

Problem 4:

It seems like the Random(int) method on IPublishedContent is missing?

Is something wrong with my Umbraco installation or is it me doing something wrong?

Kind regards,

Niek