EMGU CV Face Recognition from Image

I've been working with OpenCV before for C++ work and It was working great. Now, I'm developing a C# project and using EMGU CV for gender recognition. I've got problem with predict function. Every time I ran it, program crashed. Here's my code:

private void Window_Loaded(object sender, RoutedEventArgs e)
{
     FaceRecognizer face = new FisherFaceRecognizer(0, 3500);
     face.Load("colorFisherFaceModel.yml");                
     Image<Bgr, Byte> img1 = new Image<Bgr, Byte>("C:\\Users\\sguthesis\\Pictures\\me.jpg");
     cascade = new CascadeClassifier("C:\\Users\\sguthesis\\documents\\visual studio 2013\\Projects\\EmguCV FFR with Image\\EmguCV FFR with Image\\haarcascade_frontalface_alt_tree.xml");
     FaceRecognizer.PredictionResult predictedLabel = face.Predict(img1);
}

Also, I want to get an output, 1 or 2. 1 for male and 2 for female. I have trained many data that saved on colorFisherFaceModel.yml. It was run well on OpenCV. But I don't know how to use it in EMGU CV.