StructureMap registry isn't working for generic interfaces - structuremap

Question

public class RepositoryRegistry : Registry
{
public RepositoryRegistry()
{
Scan(x =>
{
x.Assembly("MyApp.Data");
x.TheCallingAssembly();
x.WithDefaultConventions();
x.AddAllTypesOf(typeof(ILookupRepo<>));
});
var tmp = ObjectFactory.GetInstance<ILookupRepo<User>>();
Debug.WriteLine(ObjectFactory.WhatDoIHave());
}
}
Getting this error:
{"StructureMap Exception Code: 202 No Default Instance defined for PluginFamily MyApp.Data.Repositories.Lookup.ILookupRepo`1[[MyApp.Data.Context.User, MyApp.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], TolMobile.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"}
StructureMap can't seem to resolve IAnything<T>. Is there any reason why this would stop working? I've used this in another project in the exact same way and it resolves ok. The only difference is that the version of StructureMap I am now using is newer...

Answer 1

This is not a StructureMap issue - no type inherits from ILookupRepo<>.
This is an open generic type, not a base type! If you want to find types closing on ILookupRepo<>, then you need to scan like this:
Scan(x =>
{
x.Assembly("MyApp.Data");
x.TheCallingAssembly();
x.WithDefaultConventions();
x.ConnectImplementationsToTypesClosing(typeof(ILookupRepo<>));
});
There's a blog post on the topic.