C# namespace not generated because of using reflection (no type instantiated)

I got the following issue:

I have a project / namespace ViewModels that containing several viewmodel classes described by a custom attribute that holds an interface type like:

[Register(typeof(IMyViewModel))]
public class MyViewModel : IMyViewModel

In another project I use Reflection to get all ViewModel-Types with this specific attribute and register them to an Autofac Inversion of Control - Container like

builder.RegisterType(type).As(interfaceType);

So far, it works correctly and the classes are registered as their interface types.

But now, if i call the Container.Resolve function of Autofac, there is an IO-Error saying some dlls have not been found. It looks like:

System.IO.FileNotFoundException: Could not load file or assembly '/storage/emulated/0/Android/data/MyProject/files/.__override__/de-CH/Autofac.resources.dll' 

The issue seems to be because none of the types declared in the ViewModel project are instantiated anywhere directly. My program works like a charm if I create an empty class in the ViewModel project and simply instantiate it anywhere like

Class1 c1 = new Class1()

So my question is:

Is there a better way to make sure an assembly exists even if there is no direct instantiation of any type in it?

thank you very much :)