The code below fails? What might be the problem?
 YouTubeRequestSettings settings = new YouTubeRequestSettings("whatwill come here ?",
                "my api key",
                "my youtube login email", "my youtube login password");
        YouTubeRequest request = new YouTubeRequest(settings);
Video newVideo = new Video();
newVideo.Title = "test 1";
            newVideo.Tags.Add(new MediaCategory("Gaming", YouTubeNameTable.CategorySchema));
            newVideo.Keywords = "test 1 , test 2";
            newVideo.Description = "test 3 test 4";
            newVideo.YouTubeEntry.Private = false;
            newVideo.Tags.Add(new MediaCategory("tag 1, tag 2",
              YouTubeNameTable.DeveloperTagSchema));
            newVideo.YouTubeEntry.Location = new GeoRssWhere(37, -122);
            newVideo.YouTubeEntry.MediaSource = new MediaFileSource("C:\\test.avi", "video/quicktime");         
                Video createdVideo = request.Upload(newVideo);
I solved the problem. It was my category: the category has to be Games instead of Gaming.
 
     
    