Inkompatible Typen Fehler?

[mkinzler]

Delphi-Quellcode:

TTpArray = array of tpoint;;
tpl = record
    index     :integer;
    farbe     :tcolor;
    zuparken  :string;
    a         :TTpArray;
  end;

  tfl = record
    index :integer;
    farbe :tcolor;
    a     :TTpArray;
  end;

  tlevel = record
    s:    string;
    pl    :array of tpl;
    fl    :array of tfl;
    bg    :tcolor;
  end;

var
  Form2: TForm2;
  lvl:tlevel;
  buf:TTpArray;