title: C# CsvHelper.ValidationException - Why?
body: <p>I am trying to use CSVHelper in C# console app . I have a this exception:</p>
  
  <blockquote>
    <p>CsvHelper.ValidationException: 'Header matching ['Numer Dokumentu']
    names at index 0 was not found.</p>
  </blockquote>
  
  <p>And I don't know why becouse this header is on his place in csv file.</p>
  
  <p>Here is my Program.cs</p>
  
  <pre><code>var packs = new List&lt;Pack&gt;();
              using (var streamReader = File.OpenText("C:/.../file.csv"))
              {                
                  var reader = new CsvReader(streamReader);
                  reader.Configuration.RegisterClassMap&lt;PackMap&gt;();
                  packs = reader.GetRecords&lt;Pack&gt;().ToList();
              }
  </code></pre>
  
  <p>And Pack.cs</p>
  
  <pre><code>public class Pack {   
      public string NrDoc { get; set; }
      public string recipientName { get; set; }
      public string recipientAdress { get; set; }
      public string recipientCity { get; set; }
      public string packValue { get; set; }
      public string packInfo { get; set; }
       }
  </code></pre>
  
  <p>and PackMap.cs</p>
  
  <pre><code> sealed class PackMap : ClassMap&lt;Pack&gt;
  {
      public PackMap()
      {
  
          AutoMap();
          Map(m =&gt; m.NrDoc).Name("Numer Dokumentu");
          Map(m =&gt; m.recipientName).Name("Kontrahent");
          Map(m =&gt; m.recipientAdress).Name("Ulica");
          Map(m =&gt; m.recipientCity).Name("Miasto");
          Map(m =&gt; m.packValue).Name("Brutto");
          Map(m =&gt; m.packInfo).Name("Opis");
      }
  }
  </code></pre>
  
  <p>In "PackMap.cs" I tried to use Index(0),Index(1), etc. and no changes. 
  Who will tell me what I doing wrong?
  I must use different headers name in CSV file and different variables in C#</p>
  
  <p>This is my csv file:</p>
  
  <pre><code>Numer Dokumentu;Status;Data wyst.;Magazyn;Kontrahent;Ulica;Miasto;Netto;Brutto;Opis
  FA/3/08/2017/1;;16.08.2017;MAGAZYN;Damianowa Firma;Nowa Lucyna Herc;Lublin;87;20;107;25;Wystawić fakturę. Uwagi klienta:   1
  FA/1/10/2017/6;;28.10.2017;MAGAZYN;IBIS Marek Jeż;Jana Pawła II;Szubin;241;00;296;43;Wysyłka
  FA/2/10/2017/6;;28.10.2017;MAGAZYN;Netia  S.A.;ul. Poleczki 13;Warszawa;782;28;962;20;Wysyłka pobranie
  </code></pre>