[Solved] C# Error: initialize new instance of the list class that is empty and has the default initial capacity

Hi,

I get this error. What's wrong with this class structure? What path should I follow.

Error : initialize new instance of the list class that is empty and has the default initial capacity

public class Dusumler : BaseEntity
{
      public string BeyannameNO { get; set; }

      public string StokKodu { get; set; }

      public string ArtikelName { get; set; }

      public string TicariTanim { get; set; }

      public string Karisim { get; set; }

      public decimal Agirlik { get; set; }

      public string Mensei { get; set; }

      public string GtipNo { get; set; }

      public string Marka { get; set; }

      public string Artikel { get; set; }

      public string KumasKodu { get; set; }

      public decimal BirimFiyat { get; set; }

      public decimal ToplamFiyat { get; set; }

      public int Adet { get; set; }

      public int KoliAdet { get; set; }
}
 
public class DusumDto
{
      public string BeyannameNO { get; set; }
      public string StokKodu { get; set; }
      public string ArtikelName { get; set; }
      public string TicariTanim { get; set; }
      public string Karisim { get; set; }
      public decimal Agirlik { get; set; }
      public string Mensei { get; set; }
      public string GtipNo { get; set; }
      public string Marka { get; set; }
      public string Artikel { get; set; }
      public string KumasKodu { get; set; }
      public decimal BirimFiyat { get; set; }
      public decimal ToplamFiyat { get; set; }
      public int Adet { get; set; }
      public int KoliAdet { get; set; }
}
 
//Web Project Models
public class VM_Dusum
{
    public List<DusumDto> Dusumler { get; set; }
}

C#

VM_Dusum dusum = new VM_Dusum();
 
dusum.StokKodu = stok;
dusum.ArtikelName = artikeladi;
dusum.BeyannameNO = bno;
dusum.TicariTanim = ticaritanim;
dusum.Karisim = karisim;
dusum.Agirlik = agirlik;
dusum.Mensei = mensei;
dusum.GtipNo = gtip;
dusum.Marka = marka;
dusum.Artikel = artikel;
dusum.KumasKodu = kumaskodu;
dusum.BirimFiyat = birimfiyat;
dusum.ToplamFiyat = toplamfiyat;
dusum.Adet = adet;
dusum.KoliAdet = koliadet;
 
dusum = new VM_Dusum();
{
    dusum = new List<DusumDto>();
};
 
dusum.Dusumler.Add(dusum);