How do you use this with an IFC file?

[Ajes1337]

String fileName = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "AC14-FZK-Haus.ifc");

        AssimpContext importer = new AssimpContext();

        m_model = importer.ImportFile(fileName, PostProcessSteps.None);

Gives me this error:

Assimp.AssimpException: 'Error importing file: The string ",0.,0.))" cannot be converted into a value.'

Cannot find any examples on how to use assimp-net with ifc files... :/