Unable to login as specific user to MFilesClientApplication due to multiple files not being found.

After creating a MFilesClientApplication COM object type and an instance of that object I then want to login as a specific user to a vault but im getting the following error when executing code.

Code executed: 

      Type comObj = Type.GetTypeFromProgID("MFilesAPI.MFilesClientApplication");
      dynamic app = Activator.CreateInstance(comObj);
      var oVault = app.LogInAsUser(<parameters>)

Error:

Im unsure on how to move forward with this exception message. All help is greatly appreciated.