xamarin - C# MEF dependency injection: the classes in the module cannot be loaded -

i want use mef achieve dependency injection. however, when trying load different .dll files runs system.reflection.reflectiontypeloadexception: classes in module cannot loaded. occurs when trying load "microsoft.aspnet.identity.owin.dll".

i'm trying on mac, using mono compiler , target framework set at: .net framework 4.5.2

    #region constructor     public moduleconfigurationcatalog()     {         var assemblyuri = new uri(path.getdirectoryname(new uri(assembly.getexecutingassembly().codebase).localpath));         var assemblydir = assemblyuri.localpath;          var allfiles = directory.enumeratefiles(assemblydir, "*.*", searchoption.alldirectories);         var assemblies = allfiles.where(f => f.endswith(".dll", stringcomparison.ordinalignorecase) || f.endswith(".exe", stringcomparison.ordinalignorecase)).distinct();          _catalog = new aggregatecatalog();          foreach (var assembly in assemblies)         {             var assemblycatalog = new assemblycatalog(assembly);              if (assemblycatalog.parts.tolist().count > 0)             {                 _catalog.catalogs.add(assemblycatalog);             }         }     }     #endregion 

breakpoint information

stacktrace

you're missing dependency of microsoft.aspnet.identity.owin.dll assembly. make sure of dependencies exist in same folder. (or maybe load gac if exists there... not sure how mef, though.)