Hello,

What am i doing wrong, i cannot get this to work at all, i've added an archetype property to my document type, which is used in a nested content.

In my umbraco content everything works just fine, but after i run model builder and try to build my solution i get this error

And my code also gives me an error.

i've never had issues before, but now all my archetype properties breaks and gives me an error

An error occured


Mapping types:
DataTypeDefinition -> IEnumerable`1
Umbraco.Core.Models.DataTypeDefinition -> 

System.Collections.Generic.IEnumerable`1
[[Umbraco.Web.Models.ContentEditing.PreValueFieldDisplay, 
umbraco, Version=1.0.7009.26206, Culture=neutral, 
PublicKeyToken=null]]

Destination path:
DataTypeDisplay.PreValues.PreValues

Source value:
Umbraco.Core.Models.DataTypeDefinition