LEADTOOLS uncompressing example getting an exception
<p>I'm following the next example from the Leadtools page 
<a href="https://www.leadtools.com/help/leadtools/v19/dh/co/leadtools.codecs~leadtools.codecs.codecspngoptions.html" rel="nofollow">https://www.leadtools.com/help/leadtools/v19/dh/co/leadtools.codecs~leadtools.codecs.codecspngoptions.html</a></p>

<p>The version is the 19</p>

<p>But I'm getting this error in visual studio, {featured not supported}, I don't know what I'm doing wrong?</p>

<pre><code>using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using Leadtools;
using Leadtools.Codecs;


namespace DicomTest3
{
    public class Program
    {
        public static void Main(string[] args)
        {
            const string LEAD_VARS = @"C:\Users\Public\Documents\LEADTOOLSImages";

            RasterSupport.SetLicense(
                @"C:\LEADTOOLS 19\Common\License\LEADTOOLS.LIC",
                File.ReadAllText(@"C:\LEADTOOLS 19\Common\License\LEADTOOLS.LIC.KEY")
            );

            RasterCodecs codecs = new RasterCodecs();
            string srcFileName = Path.Combine(LEAD_VARS, "IMAGE1.CMP");
            RasterImage image = codecs.Load(srcFileName);

            // save with maximum quality
            codecs.Options.Png.Save.QualityFactor = 1;
            codecs.Save(image, Path.Combine(LEAD_VARS, "quality.png"), RasterImageFormat.Png, image.BitsPerPixel);

            // save with maximum compression
            codecs.Options.Png.Save.QualityFactor = 9;
            codecs.Save(image, Path.Combine(LEAD_VARS, "compression.png"), RasterImageFormat.Png, image.BitsPerPixel);

            // Clean up
            image.Dispose();
            codecs.Dispose();
        }

    }
}
</code></pre>

<p><a href="http://i.stack.imgur.com/p8Wsu.png" rel="nofollow">Error during debugging</a></p>