Exception: Could not load file or assembly 'HtmlRenderer, version=1.5.0.5'

Hello,

I am trying to convert html from a mail-body into PDF.

I have this code:

using PdfSharp;
using System;
using System.IO;
using TheArtOfDev.HtmlRenderer.PdfSharp;

namespace myNamespace.Services.Pdf
{
    public class PdfCreator : IPdfCreator
    {
        public byte[] CreateFromHtml(string bodyOriginal)
        {
            if (string.IsNullOrEmpty(bodyOriginal))
                return null;

            try
            {
                using (var outputStream = new MemoryStream())
                {
                    var pdf = PdfGenerator.GeneratePdf(bodyOriginal, PageSize.A4);
                    pdf.Save(outputStream);
                    var result = outputStream.ToArray();
                    pdf.Dispose();
                    return result;
                }               
            }
            catch (Exception ex)
            {
                return null;
            }
        }
    }
}

But always I call this CreateFromHtml function I got an exception:

Could not load file or assembly ‘HtmlRenderer, Version=1.5.0.5, Culture=neutral, PublicKeyToken=null’ or one of its dependencies. The system cannot find the file specified.

I am working with net framework 4.6.1 and I have installed HtmlRenderer with Nuget package.

I have tested the htmlrenderer.dll is in the bin folder.

Any help would be appreciated.