Excel Export using ClosedXML.Excel.dll in ASP.NET MVC

Question

Getting error when call GetAllProduct method to export excel data.

Server Error in '/' Application. Could not load file or assembly 'FastMember, Version=1.3.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.

Error

public void GetAllProduct()
    {
        var dtable = _productmasterService.GetProductMasterData(ManageSession.UserId);

        using (XLWorkbook wb = new XLWorkbook())
        {
            wb.Worksheets.Add(dtable);
            Response.Clear();
            Response.Buffer = true;
            Response.Charset = "";
            Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            Response.AddHeader("content-disposition", "attachment;filename=List of Products_" + DateTime.Now.Ticks.ToString() + ".xlsx");
            using (MemoryStream myMemoryStream = new MemoryStream())
            {
                wb.SaveAs(myMemoryStream);
                myMemoryStream.WriteTo(Response.OutputStream);
                myMemoryStream.Position = 0;
                myMemoryStream.Close();
                Response.Flush();
                Response.End();
            }

        }
    }